Westport announces annual meeting and retirement of director

VANCOUVER, Aug. 5, 2003 -- Westport Innovations Inc. (WPT:TSX) today announced plans for its annual and special meeting of shareholders. Meeting materials, including the Management Proxy Circular and the Annual Report for the fiscal year ended March 31, 2003 have been mailed to shareholders. Both documents are also available on Westport's web site, www.westport.com in the Investor Relations area. Shareholders are reminded that they may vote in advance of the meeting by following the instructions contained in their package.

Westport's Annual and Special Meeting will be held on September 3, 2003 at 2:00 PM (Pacific Daylight Time) at the Morris J. Wosk Centre for Dialogue, 580 West Hastings Street, Vancouver. In addition to the formal matters on the agenda, Westport will review its business and will display a heavy-duty truck powered by a Cummins Westport ISX G engine. The 15-liter, 400-horsepower ISX G is a high-performance, low-emissions natural gas engine for heavy-duty applications. The ISX G is currently undergoing field trials with production scheduled in mid-2004.

The agenda for the meeting includes the election of directors. Appointments to the Westport board are for a one-year term. The proposed members of the Board for the ensuing year are John Beaulieu (Chairman), Dr. Warren Baker, David Demers (CEO), Dr. Dezso Horvath (Chair, Strategy), Kiran Patel (Chair, Audit), and Patrick Lavelle (Chair, Compensation). Dr. Baker also acts as the Board's Technology Advisor.

Alex Klopfer, who has served as a member of the Board of Directors since 1995, and as an officer of Westport from 1998 through 2001, will retire from the Board and will not be standing for re-election at the meeting. Mr. Klopfer has been appointed Director Emeritus and has agreed to make himself available for consultation to the Board as required. "Alex has made a tremendous contribution to the growth of our company from its earliest days as a startup," said David Demers, Westport's Chief Executive Officer. "On behalf of the Board, I would like to express our appreciation for Alex's commitment and his support of our young company."

With the retirement of Mr. Klopfer, all members of the Board, except the CEO, are independent and are "unrelated" as defined by the Toronto Stock Exchange governance guidelines (the "TSX Guidelines"), and all Board Committees are composed entirely of unrelated directors. Westport is in compliance with every one of the TSX Guidelines. A full statement of Westport's corporate governance practices can be found in the Management Proxy Circular.

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.

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.

  For further information please contact:
  Investor Relations
  Phone (604) 718-2046, Fax (604) 718-2001
  Email invest@westport.com, Web www.westport.com