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Westport reports results for first fiscal quarter ending June 30, 2003

VANCOUVER, July 23 -- Westport Innovations Inc. (WPT:TSX) today reported results for its first fiscal quarter ended June 30, 2003 and provided an update on operations.

Westport's net loss for the quarter was $8.3 million ($0.16 per share), compared with a loss of $11.4 million ($0.22 per share) during the same period in fiscal 2003. This is the fourth consecutive quarter of improved loss per share for the Company.

"Westport is pleased to report a strong first quarter performance, with improved revenues, year over year and the lowest net loss reported in nine fiscal quarters," said David Demers, President and CEO of Westport Innovations. "Our focused effort to launch our products and reach profitability is having a positive impact on our results."

Total revenue increased by 19% to $4.4 million from $3.7 million in the same quarter last year. Product revenue grew to $3.5 million from $3.4 million year over year and parts revenue increased to $817,267, from $288,383. Because of a weaker US dollar and change in product and customer mix, product revenue grew by 4% while engine shipments grew 27% to 181 units from 142 units in the same quarter last year. The 181 units represents Cummins Westport best first quarter result since being formed in April 2001.

Decreasing 20% from the previous quarter, expenses excluding cost of product revenue totaled $10.1 million, down from $12.7 million the same quarter last year. Research and development, the largest expense category, was $6.6 million, down 26% from the same quarter last year, primarily attributed to funding awarded by Technology Partnership Canada in March 2003 and other government funding.

Cash, short-term investments and accounts receivable, net of accounts payable, decreased from $26.8M at March 31, 2003 to $18.4M at June 30, 2003. Included in accounts receivables is approximately $8M from TPC, which is expected to be received before the end of the second quarter of fiscal 2004. As part of its commitment to meet its cash objectives for the year, Westport continues to focus on its critical programs, pace spending with funding and pursue government, industry and other support to diversify its sources of cash and revenue streams.

CWI

Despite a slow-down in the Asian economy during the quarter, Cummins Westport Inc. (CWI) increased engine shipments year over year.

In the quarter, CWI launched the B LPG Plus, a new low-emissions LPG (liquid petroleum gas) engine for mid-size truck and bus applications. In June, CWI received its first order of 20 LPG Plus engines from the Ontario International Airport in California.

Shortly after the close of the quarter, CWI announced it had received its first order for the 320-horsepower L Gas Plus natural gas engine. The Metropolitan Transportation Authority of Los Angeles County has ordered 200 buses equipped with the new L Gas Plus, with an option to increase the order to 600 buses. Including the options, this is CWI's largest engine order to date. This new engine is scheduled for commercial launch in mid-2004.

"In the first quarter, our sales efforts were affected by SARS in China, but we have now resumed normal activity levels," said Hugh Foden, President of Cummins Westport. "We have a solid order board from transit agencies in the US, including our major Boston order which will begin its build in the current quarter. With the engine order for the L Gas Plus engine, we are also filling our 2005 backlog with significant orders."

CWI continued to advance its Westport-Cycle(TM) heavy-duty engine programs during the quarter. In late June, Cummins Westport announced a demonstration project of heavy-duty trucks powered by the ISX G engines along Highway 401, Canada's busiest urban corridor. CWI is working with a consortium including Enbridge Gas Distribution Inc. to deploy the first 10 trucks using 15-liter ISX G engines operating on liquefied natural gas in the fall of 2004. CWI plans to employ a similar model in other urban centers to expand the use of LNG-powered heavy-duty trucks.

The Westport-Cycle ISX G (400 horsepower) heavy-duty engine program continued to progress towards its commercial launch in mid-2004. Over 2 million kilometers have been clocked on Norcal's 14 heavy-duty ISX G-powered trucks to date, and CWI will deliver nine more ISX G engines to Norcal, with cooled exhaust gas recirculation, at the end of this year.

CWI's prototype ISX G-powered truck has been selected as a competitor in the 2003 Michelin Challenge Bibendum. This year the event, considered the premier world competition for advanced technology, low-emissions vehicles, will for the first time include a category for heavy-duty vehicles.

Development work on the 60-liter QSK engine for power generation has also continued during the quarter. CWI has completed the installation of field trial units in Anaheim, California and Grande Prairie, Alberta. As stated in Westport's restructuring plan announced in April, CWI's QSK engine program is a robust business opportunity that will be managed within the financial resources available. Given the current available financial resources, CWI has decided to focus on the key research projects for the QSK program and to defer the commercial launch. Westport and Cummins continue to work hard to identify future funding sources, and the program will be accelerated once further funding is secured.

Governments continue to recognize the clean air value of CWI's natural gas engines through support for development programs. In May, CWI was awarded $816,960 in funding from the National Renewable Energy Laboratory (NREL) in the US to advance the development of the 320-horsepower L Gas Plus engine.

Development Projects with Isuzu and MAN

Westport has successfully completed its engine testing for the Isuzu program and finished building a prototype ELF truck for demonstration in Japan.

After completing a 200-hour engine and component durability test program, the 4.5-liter natural gas engine, using Westport's advanced hot surface ignition technology, reached or surpassed Isuzu's key technical milestones for torque, thermal efficiency, and emissions of nitrogen oxides, hydrocarbons and carbon dioxide. Isuzu is satisfied with the test results submitted to them in July and has begun demonstrating the prototype low-emission truck in Japan. Isuzu's prototype ELF truck has been selected to compete in the 2003 Challenge Bibendum competition, being held in Sonoma, California.

Michael Gallagher, Chief Operating Officer for Westport said, "We are very proud to be working together with Isuzu to develop one of the world's cleanest high efficiency medium-duty truck engines and to demonstrate this technology to the world at the Challenge Bibendum."

Westport's development program with MAN is progressing on schedule. During the quarter, Westport received funding of Euro$220,000 from the German Gas Industry, under the leadership of Ruhrgas, to complete the next phase of testing of the prototype MAN engine in a test cell in Germany. The funding also covered costs to commission an independent market study to determine the commercial opportunities for MAN's truck and bus engines equipped with Westport-Cycle technology.

Westport invites its shareholders to attend its Annual Shareholders' Meeting taking place on September 3, 2003 at 2 p.m. Pacific Time at the Morris J. Wosk Centre for Dialogue, 580 West Hastings Street, Vancouver, British Columbia.

Westport Innovations Inc. is the leading developer of gaseous fuel engine technologies. It develops, manufacturers and sells a wide range of engines for commercial transportation applications such as trucks and buses through its joint venture with Cummins, Inc. Technology development alliances are in place with a number of other leading engine manufacturers, including Ford, MAN, Isuzu, and BMW.

  Westport has scheduled a public conference call for Wednesday, July 23,
  2003 at 8 am (Pacific Time) to discuss the quarterly and year-end
  results. To access the conference call by telephone, please call 1-888-
  295-1311 no later than 7:55 am on July 23. Alternatively, the webcast of
  the conference call can be accessed through the Westport web site at
  www.westport.com by following the link on the investor information menu.
  Replays will be available in streaming audio shortly after the conclusion
  of the conference call.

  To view the financials and management's discussion and analysis, please
  point your browser to the following link:
  http://www.westport.com/investor/financial.php

Note: This document contains forward-looking statements about Westport's business, operations, technology development or to the environment in which it operates, which are based on Westport's estimates, forecasts and projections. These statements are not guarantees of future performance and involve risks and uncertainties that are difficult to predict, or are beyond Westport's control. Consequently, readers should not place any undue reliance on such forward-looking statements. In addition, these forward-looking statements relate to the date on which they are made. Westport disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

  WESTPORT INNOVATIONS INC.
  Consolidated Balance Sheets
  (Expressed in Canadian dollars)
  -------------------------------------------------------------------------

                                            June 30, 2003   March 31, 2003
                                           --------------------------------
                                             (Unaudited)

  Assets

  Current assets:
    Cash and cash equivalents (note 3)      $   1,279,612    $   2,981,999
    Short-term investments                     13,142,397       25,137,389
    Accounts receivable                         9,368,691        7,080,281
    Prepaid expenses                              219,095          266,892
                                           --------------------------------
                                               24,009,795       35,466,561

  Long-term investments                        12,206,286       12,206,286

  Equipment, furniture and leasehold
   improvements                                34,198,081       33,038,443
  Accumulated amortization                    (17,387,920)     (15,881,378)
                                           --------------------------------
                                               16,810,161       17,157,065

  Intellectual property                         3,314,160        3,314,160
  Accumulated amortization                     (1,897,824)      (1,746,635)
                                           --------------------------------
                                                1,416,336        1,567,525

                                            $  54,442,578    $  66,397,437
                                           --------------------------------
                                           --------------------------------

  Liabilities and Shareholders' Equity

  Current liabilities:
    Accounts payable and accrued
     liabilities                            $   5,391,453    $   8,316,177
    Demand instalment loan                      2,083,334        2,500,000
    Current portion of capital lease
     obligations                                  369,999          369,999
    Current portion of warranty liability       3,703,585        4,186,348
                                           --------------------------------
                                               11,548,371       15,372,524

  Capital lease obligations                       721,759          832,270

  Warranty liability                            2,857,099        2,960,881

  Shareholders' equity:
    Share capital:
      Issued: 51,316,053 (2003-51,316,053)
       common shares                          189,864,603      189,864,603
    Other equity instruments (note 5)           3,003,943        2,600,892
    Additional paid in capital                     51,421           40,664
    Deficit                                  (153,604,618)    (145,274,397)
                                           --------------------------------
                                               39,315,349       47,231,762

                                           --------------------------------
                                            $  54,442,578    $  66,397,437
                                           --------------------------------
                                           --------------------------------

  See accompanying notes to consolidated financial statements

  WESTPORT INNOVATIONS INC.
  Consolidated Statements of Operations and Deficit
  (Expressed in Canadian dollars)
  -------------------------------------------------------------------------

                                                  Three Months Ended
                                            June 30, 2003    June 30, 2002
                                           --------------------------------
                                              (unaudited)      (unaudited)

  Product revenue                           $   3,540,227    $   3,419,469
  Parts revenue                                   817,267          288,383
                                           --------------------------------
                                                4,357,494        3,707,852

  Cost of revenue and expenses:
    Cost of product revenue                     2,805,661        2,678,988
    Research and development
     (notes 5 and 6)                            6,623,841        8,967,128
    General and administrative (note 5)         1,218,059        1,198,481
    Sales and marketing (note 5)                1,390,269        1,126,634
    Foreign exchange gain                        (905,854)        (217,898)
    Amortization                                1,657,731        1,555,893
    Bank charges and interest on
     capital leases                               102,480           74,591
                                           --------------------------------
                                               12,892,187       15,383,817

  Loss before undernoted                        8,534,693       11,675,965

  Interest and investment income                 (204,472)        (507,505)
  Loss from investment accounted for by
   the equity method                                    -          213,052
                                           --------------------------------

  Loss for the period                           8,330,221       11,381,512

  Deficit, beginning of period                145,274,397       96,764,581
                                           --------------------------------

  Deficit, end of period                    $ 153,604,618    $ 108,146,093
                                           --------------------------------
                                           --------------------------------

  Basic and diluted loss per share          $        0.16    $        0.22
                                           --------------------------------

  Weighted average common shares
   outstanding                                 51,316,053       50,714,878
                                           --------------------------------
                                           --------------------------------

  See accompanying notes to consolidated financial statements

  WESTPORT INNOVATIONS INC.
  Consolidated Statements of Cash Flows
  (Expressed in Canadian dollars)
  -------------------------------------------------------------------------

                                                   Three Months Ended
                                            June 30, 2003    June 30, 2002
                                           --------------------------------
                                              (unaudited)      (unaudited)
  Cash flows from operating activities:
    Loss for the period                     $  (8,330,221)   $ (11,381,512)
    Items not involving cash:
      Amortization                              1,657,731        1,555,893
      Stock-based compensation expense            128,095          382,946
      Accretion of TPC warrants (note 5 b))       285,713                -
      Loss from investment accounted for
       by the equity method                             -          213,052
    Changes in non-cash operating working
     capital:
      Accounts receivable                      (2,288,410)        (774,921)
      Prepaid expenses                             47,797          (56,503)
      Accounts payable and accrued
       liabilities                             (2,924,724)         538,423
      Warranty liability                         (586,545)          86,199
                                           --------------------------------
                                              (12,010,564)      (9,436,423)

  Cash flows from investing activities:
    Purchase of equipment, furniture and
     leasehold improvements                    (1,159,638)        (774,035)
    Sale of short-term investments             11,994,992       10,325,886
                                           --------------------------------
                                               10,835,354        9,551,851

  Cash flows from financing activities:
    Repayment of demand instalment loan          (416,666)        (416,667)
    Repayment of capital lease obligation        (110,511)         (92,518)
    Issue of common shares, net of
     issuance costs                                     -          433,774
                                           --------------------------------
                                                 (527,177)         (75,411)

                                           --------------------------------
  Increase (decrease) in cash and cash
   equivalents                                 (1,702,387)          40,017

  Cash and cash equivalents, beginning
   of period                                    2,981,999          860,554
                                           --------------------------------

  Cash and cash equivalents, end of
   period                                   $   1,279,612    $     900,571
                                           --------------------------------
                                           --------------------------------

  Supplementary information:
    Interest paid                           $      98,647    $      56,557
    Non-cash transactions:
      Shares issued on exercise of
       performance share units                          -          140,000

  See accompanying notes to consolidated financial statements

  WESTPORT INNOVATIONS INC.
  Notes to Consolidated Financial Statements
  (Expressed in Canadian dollars)
  (Unaudited)
  -------------------------------------------------------------------------

  1. Basis of Presentation

  The unaudited consolidated balance sheet and the statements of operations
  and deficit and cash flows have been prepared in accordance with Canadian
  generally accepted accounting principles for interim financial
  statements. The accompanying unaudited consolidated financial statements
  do not include all information and footnote disclosures required under
  Canadian generally accepted accounting principles for annual financial
  statements. These financial statements have been prepared, except as
  disclosed in note 2, on a basis consistent with, and should be read in
  conjunction with, the consolidated financial statements and notes thereto
  for the fiscal year ended March 31, 2003.

  These consolidated financial statements have been presented on a going
  concern basis, which assumes the realization of assets and the settlement
  of liabilities in the normal course of operations. To date, the Company
  has financed its operations primarily by equity financing and margins on
  the sale of products and parts. If, the Company does not have sufficient
  funding from internal or external sources, it may be required to delay,
  reduce or eliminate certain research and development programs, and forego
  acquisition of certain equipment. The future operations of the Company
  are dependent upon its ability to produce, distribute and sell an
  economically viable product to attain profitable operations.

  In the opinion of management, all adjustments (consisting solely of
  normal recurring accruals) considered necessary for a fair presentation
  of the financial position, results of operations and cash flows as at
  June 30, 2003 and for all periods presented, have been included.

  2. Accounting Policies

  Effective for the Company's fiscal year beginning April 1, 2003, the
  Company adopted the recommendations in CICA Handbook Section 3063 -
  "Impairment of Long-Lived Assets". Under this section the Company reviews
  for impairment long-lived assets to be held and used whenever events or
  changes in circumstances indicate that the carrying amount of the assets
  may not be recoverable. If the sum of the undiscounted expected future
  cash flows expected to result from the use and eventual disposition of an
  asset is less than its carrying amount, it is considered to be impaired.
  An impairment loss is measured at the amount by which the carrying amount
  of the asset exceeds its fair value. When quoted market prices are not
  available, the Company uses the expected future cash flows discounted at
  a rate commensurate with the risks associated with the recovery of the
  asset as an estimate of fair value. To June 30, 2003, the Company does
  not consider that an impairment in long-lived assets has occurred.

  3. Cash and Cash Equivalents

  A total of $ 646,315 in cash has been set aside as security for certain
  capital lease obligations. This amount will be reduced as the principal
  amounts owing on these obligations are paid down.

  4. Share Purchase Options

  -------------------------------------------------------------------------
                            Three months ended         Three months ended
                              June 30, 2003              June 30, 2002
                       ----------------------------------------------------
                           Share       Weighted       Share       Weighted
                          options      average       options      average
                                       exercise                   exercise
                                        price                      price
  -------------------------------------------------------------------------
  Outstanding,
   March 31, 2003        3,811,909     $   4.61     3,543,933     $   4.50
  Granted                  404,631         1.50       107,818         8.25
  Exercised                      -            -      (164,852)       (2.91)
  Cancelled               (207,497)      (15.76)      (18,916)       (4.16)
  -------------------------------------------------------------------------

  Outstanding,
   June 30, 2003         4,009,043     $   3.72     3,467,983     $   4.70
  -------------------------------------------------------------------------

  Options exercisable,
   June 30, 2003         3,644,320     $   3.58     2,484,581     $   3.96
  -------------------------------------------------------------------------

  During the three months ended June 30, 2003 the Company recognized
  $10,757 (2002- $22,946) of stock-based compensation related to options
  granted to non-employees based on their fair value at the grant date. The
  Company recognizes stock-based compensation for employees using the
  intrinsic value method. Had compensation cost for employee share options
  been determined based on fair value at the grant dates of the share
  options and charged to operations over the vesting period of the options
  consistent with the recommendations in CICA Handbook Section 3870, net
  loss and net loss per share would be as follows:

                     Three months ended           Three months ended
                       June 30, 2003                 June 30, 2002
                 As reported    Pro-forma      As reported    Pro-forma
  -------------------------------------------------------------------------

  Net loss       $  8,330,221   $  8,741,088   $ 11,381,512   $ 11,953,030

  Net loss per
   share
    Basic and
     diluted     $       0.16   $       0.17   $       0.22   $       0.24

  Stock based
   compensation  $    128,095   $    538,962   $    382,946   $    954,464

  The fair value of these options has been determined using the Black-
  Scholes option pricing formula using the following weighted average
  assumptions: expected dividend yield - nil%; expected stock price
  volatility - 96.18% (2002 - 95%); risk free interest rate - 2.57% (2002 -
  4.47%); expected life of options - 4 years (2002 - 4 years). The average
  fair value of options granted for the three months ending June 30, 2003
  was $1.02 (2002 - $5.74).

  5. Other Equity Instruments

                                            June 30, 2003   March 31, 2003
                                           --------------------------------

  Value assigned to performance share
   units (a)                                $   2,718,230    $   2,600,892
  Value assigned to TPC warrants (b)              285,713                -
                                           --------------------------------

                                            $   3,003,943    $   2,600,892
                                           --------------------------------
                                           --------------------------------

  a) Performance share units:

  In the three months ended June 30, 2003, the Company granted 78,225
  performance share units having a value of $117,337 (2002-nil), which are
  exercisable into common shares for no additional consideration. No
  performance share units were exercised during the three months ended June
  30, 2003 and as at June 30, 2003 there are 930,000 performance share
  units outstanding. Stock-based compensation associated with the
  performance share unit plan and the share option plan, discussed in note
  4, is included in operating expenses as follows:

                                                    Three months ended
                                            June 30, 2003    June 30, 2002
                                           --------------------------------

  Research and development expenses                 5,484          112,946
  General and administrative expenses             122,611          180,000
  Sales and marketing                                   -           90,000
                                           --------------------------------

                                            $     128,095    $     382,946
                                           --------------------------------
                                           --------------------------------

  b) TPC warrants:

  Under the terms of the agreement with Technology Partnerships Canada
  ("TPC"), warrants with a fair value of $4,000,000 based on the Black-
  Scholes pricing model will be issued on September 30, 2006. The value of
  the warrants is being accreted on a straight-line basis to September 30,
  2006. For the three months ended June 30, 2003, accretion totalling
  $285,713 (2002 - nil) has been included in research and development
  expenses.

  6. Research and Development Expenses

  Research and development expenses are recorded net of program funding
  received or receivable. For the three months ended June 30, 2003 and
  2002, the following research and development expenses had been incurred
  and program funding received or receivable:

                                                   Three months ended
                                            June 30, 2003    June 30, 2002
                                           --------------------------------

  Research and development expenses             9,632,143        9,112,868
  Program funding                              (3,008,302)        (145,740)
                                           --------------------------------

  Total research and development expense    $   6,623,841    $   8,967,128
                                           --------------------------------
                                           --------------------------------

  In the three month period ended June 30, 2003, program funding is
  comprised mainly of funding from TPC, which was used to fund research
  projects including the adaptation of the Company's technology to diesel
  engines. In the three month period ended June 30, 2002 the program
  funding is comprised mainly of funding from the US Department of Energy
  for work performed on high horsepower natural gas engines. At June 30,
  2003, $8,463,315 of funding earned by the Company based on the terms of
  various funding agreements has not yet been received and accordingly is
  included in accounts receivable.

  7. Investment in Joint Venture

  The consolidated financial statements include the Company's 100% share of
  the revenues, expenses, assets and liabilities of the joint venture,
  Cummins Westport Inc., as follows:

                                            June 30, 2003    March 31, 2003
                                           ---------------  ---------------
  Current assets:
    Cash and cash equivalents               $      16,795    $     644,842
    Accounts receivable                         2,602,567          337,716
                                           ---------------  ---------------
                                            $   2,619,362    $     982,558
                                           ---------------  ---------------
                                           ---------------  ---------------

  Equipment, furniture and leasehold
   improvements, net                        $   1,359,154    $   1,002,113
                                           ---------------  ---------------
                                           ---------------  ---------------

  Current liabilities:
    Accounts payable and accrued
     liabilities                            $   3,319,687    $   3,598,066
    Current portion of warranty liability       3,703,585        4,186,348
                                           ---------------  ---------------
                                            $   7,023,272    $   7,784,414
                                           ---------------  ---------------
                                           ---------------  ---------------

  Long term liabilities:
    Warranty liability                      $   2,857,099    $   2,960,881
                                           ---------------  ---------------
                                           ---------------  ---------------

                                            Three Months      Three Months
                                                Ended            Ended
                                            June 30, 2003    June 30, 2002
                                           --------------------------------
  Product revenue                           $   3,404,647    $   3,319,470
  Parts revenue                                   817,267          288,383
                                           --------------------------------
                                                4,221,914        3,607,853

  Cost of revenue and expenses:
    Cost of product revenue                     2,649,028        2,507,045
    Research and development                    5,864,439        7,162,925
    General and administrative                    141,815          142,047
    Sales &  Marketing                          1,004,540          621,765
                                           --------------------------------
                                                9,659,822       10,433,782
                                           --------------------------------

  Loss for the period                       $   5,437,908    $   6,825,929
                                           --------------------------------
                                           --------------------------------

  8. Segmented Information

  The Company currently operates in one operating segment which involves
  the research and development and related commercialization of engines and
  fuel systems operating on gaseous fuels. The majority of the Company's
  equipment, furniture and leasehold improvements are located in Canada.
  For the three month period ended June 30, 2003, 78% (2002 - 88%) of the
  Company's revenue was from sales in the United States and 22% (2002 -
  12%) from sales outside of North America.