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Aprilia World Service Signs Orbital License Agreement

22 September 1999

Aprilia World Service Signs Orbital License Agreement

    PERTH, Western Australia, Sept. 22 -- Aprilia World Service
B.V. (Swiss Branch), a company belonging to the Aprilia Group, Europe's second
largest and fastest growing motorcycle and scooter manufacturer, has signed a
license agreement with Orbital Engine Corporation .  This grants
them rights to commercially introduce motorcycles and scooters incorporating
Orbital's direct fuel injection technology and is a precursor to the imminent
volume production of the fuel system.  The two companies have also signed a
marketing agreement for the ongoing promotion of the low emissions technology
on the Aprilia branded product range.
    The technology will ultimately allow Aprilia branded products to meet
stringent European stage 2 emissions standards mandated for 2002.  These
powerful, highly efficient clean two stroke engines are producing emissions,
fuel economy and performance superior to the four stroke engines previously
touted as the solution to the emissions challenges of the motorcycle industry.
    The license and marketing agreements follow Aprilia's December 1998
announcement that they intended to have motorcycles and scooters using Orbital
direct fuel injection technology in production within one year.  Orbital and
Aprilia World Service have jointly conducted an intense and highly successful
program of technical development since that time, which has ultimately led to
the technology licensed under this agreement.  Aprilia World Service has also
actively promoted the use of Orbital's technology under the "DiTech" brand
name, including the use of Orbital's name and logo on the Aprilia 500cc grand
prix racing bike.
    Orbital CEO, Mr. Kim Schlunke said "The Aprilia Group has a reputation as
a technical leader in the motorcycle industry and the performance and fuel
economy of the jointly developed product has set a completely new level of
technical capability.  We expect the release of Aprilia branded product will
create significant momentum in the European market."
    The license agreement also addresses the allocation between the two
parties of carbon credits generated by the fuel economy improvements achieved
on these next generation scooters and motorcycles.
    Orbital is a leading international developer of engine technologies using
direct in-cylinder fuel injection and lean-burn systems for enhanced fuel
economy and lower emissions.  The company serves the worldwide automotive,
marine, recreational and motorcycle markets.  Headquartered in Perth, Western
Australia, Orbital stock is traded on the Australian Stock Exchange (OEC), the
New York Stock Exchange (OE) as well as the Berlin (ORE) and Frankfurt (OREA)
Exchanges.