QUANTUM Develops CNG Fuel System for GM Thailand

    IRVINE, Calif., April 3 QUANTUM Technologies, Inc., a
wholly owned subsidiary of IMPCO Technologies, Inc., , today
announced that it has developed a natural gas fuel system for the first
General Motors (GM) Chevrolet Zafira produced at the GM Thailand Assembly
Center in Thailand's Rayong Province.  The Zafira MPV (or compact van) is
powered with environmentally clean compressed natural gas (CNG).  The bi-fuel
CNG Zafira is equipped with the 1.8 liter 115 hp engine, the original gasoline
fuel tank and an additional CNG fuel system supplied by QUANTUM.
    (Photo: http://www.newscom.com/cgi-bin/prnh/20010320/QUANTUMLOGO )
    Recently GM Thailand announced that it signed a letter of intent with the
Petroleum Authority of Thailand and the Ministry of Science, Technology and
Environment, for a pilot study to verify the commercial production of
Thailand-produced Zafiras.  GM said Thailand was the natural choice for the
pilot study under GM's Global Alternative Fuel Project because of its abundant
resources of natural gas, as published in The Wall Street Journal Interactive
Edition, March 28, 2001.

    QUANTUM is a world leader in the development of hydrogen, compressed
natural gas (CNG) and propane (LPG) handling and advanced gaseous storage
system technologies for manufacturers of fuel cell and internal combustion
engines.

    For more information about Quantum, please see our website:
http://www.qtww.com

    For more information on the Zafira see:
    http://www.chevrolet.co.th/eng/news/f_new.htm

    For more information, please contact:

    Alan Niedzwiecki, Executive Director, Business Development,
    QUANTUM Technologies Inc.:  Tel: 949-399-4552

    William Botwick, President
    General Motors Thailand
    Tel:  011-662-937-0180 ext. 114

    QUANTUM Technologies Inc. is a wholly owned subsidiary of IMPCO
Technologies Inc. .  QUANTUM is focused on the development of
enabling technologies for alternative propulsion and energy in emerging global
markets.

    Certain matters discussed in this press release contain forward-looking
information that involves risks and uncertainties that could cause actual
results to differ materially from current trends.  These include the company's
ability to design and market advanced fuel metering, fuel storage or
electronic control products, the company's ability to meet OEM specifications,
and other such risks as cited in the 2000 annual report for IMPCO
Technologies, Inc. on Form 10-K and other documents filed with the Securities
and Exchange Commission.