Quantum Added to the Russell 2000(R) and Russell 3000(R) Indexes

IRVINE, Calif., June 28 -- Quantum Fuel Systems Technologies Worldwide, Inc. , a leading designer, manufacturer and integrator of packaged fuel systems and accessories for specialty vehicles and applications including hydrogen fuel cells, hybrids and alternative fuel applications, today announced that the company has been added to the Russell 2000(R) and Russell 3000(R) indexes. The newly reconstituted Russell indexes became effective at the close of the U.S. markets on June 24, 2005. Quantum is one of approximately 31 technology companies added to the index this year.

"We are very pleased to have been added to the Russell indexes," stated Alan P. Niedzwiecki, President and Chief Executive Officer of Quantum.

The Russell 3000(R) index is reconstituted annually and reflects the largest 3,000 U.S. companies in terms of market capitalization as of the end of May. The Russell 3000(R) index represents approximately 98 percent of the U.S. stock market. The top 1,000 companies in this index make up the large-cap Russell 1000(R). The other 2,000 companies are in the small-cap Russell 2000(R). These investment tools originated from Russell's multi-manager investment business in the early 1980s when the company saw the need for a more objective, market-driven set of benchmarks in order to evaluate outside investment managers.

Membership in the Russell 3000(R), which remains in place for one year, means automatic inclusion in the large-cap Russell 1000(R) or small-cap Russell 2000(R), as well as the appropriate growth and style indexes. Russell determines membership for its equity indexes primarily by objective, market capitalization rankings and style attributes.

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for both passive and active investment strategies. More than $2.5 trillion in assets currently are benchmarked to them. Investment managers who oversee these funds purchase shares of member stocks according to that company's weighting in the particular index.

About Quantum

Quantum is a leader in powertrain engineering, system integration and manufacturing of packaged fuel systems and accessories for specialty vehicles and applications, including fuel cells, hybrids, alternative fuels, hydrogen refueling, new body styles, mid-cycle vehicle product enhancements and high performance engines and drive trains for OEMs and consumers of specialty equipment parts and accessories. Quantum also designs and manufactures hybrid and fuel cell vehicles.

Quantum has product commercialization alliances with General Motors, AM General, Sumitomo and IMPCO. Quantum's customer base includes General Motors, Toyota, Opel, Hyundai, Suzuki, Ford, Sunline, Yamaha, AeroVironment, and the U.S. Army.

More information can be found about Quantum's products and services at www.qtww.com.

About Russell

Russell, a global leader in multi-manager investment services, provides investment products and services in more than 39 countries. Russell manages more than $135 billion in assets and advises clients worldwide representing $2.3 trillion. Founded in 1936, Russell is a subsidiary of Northwestern Mutual and is headquartered in Tacoma, Wash., with additional offices in New York, Toronto, London, Paris, Singapore, Sydney, Auckland and Tokyo. For more information, go to www.russell.com.

Forward Looking Statements

Statements in this document regarding future financial and operating results, and any other statements about the future expectations, beliefs, goals, plans, or prospects expressed by management constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Any statements that are not statements of historical fact (including statements containing the words "will," "believes," "plans," "anticipates," "expects," "estimates," and similar expressions) should also be considered to be forward-looking statements. There are a number of important factors that could cause actual results or events to differ materially from those indicated by such forward-looking statements, including: variations in pricing, material costs, other general costs and expenses; the Company's ability to successfully execute its business strategies; growth of the alternative fuel, fuel cell and specialty vehicle markets; competitive conditions in the industry; business cycles affecting the markets in which the Company conducts business; government support and funding of hydrogen initiatives; and economic conditions generally. Additional factors may be found in Quantum's Form 10-K for the year ended April 30, 2004 and in the other documents filed by the parties with the Securities and Exchange Commission "SEC"), including the Registration Statement on Form S-4 filed by Quantum with the SEC on January 19, 2005.

Forward-looking statements are based on the beliefs, opinions, and expectations of the Company's management at the time they are made, and the Company does not assume any obligation to update its forward-looking statements if those beliefs, opinions, expectations, or other circumstances should change.

  For more information regarding Quantum, please contact:

   Dale Rasmussen
   Investor Relations
   +1-206-315-8242

   Cathy Johnston
   Director of Communications and Corporate Support
   +1-949-399-4548
   cjohnston@qtww.com
   
   (C)2005 Quantum Fuel Systems Technologies Worldwide, Inc.
   Advanced Technology Center
   17872 Cartwright Road, Irvine, CA 92614
   Phone 949-399-4500     Fax 949-399-4600