Cummins Westport receives first order for B LPG Plus Propane Engine

VANCOUVER, June 2 -- Cummins Westport Inc. (CWI) announced today that it has received its first order for the B LPG Plus propane engine that was commercially launched on May 1, 20035, 2003.

California's Ontario International Airport has ordered 20 Cummins Westport 195-horsepower B LPG Plus engines using liquid petroleum gas (LPG). They will be installed in 32-foot, commercial buses manufactured by DaimlerChrysler Commercial Buses of Greensboro, N.C. The Cummins distributor responsible for the order is Cummins Cal Pacific of Bloomington, CA.

The shuttle buses, to be delivered by early 2004, will carry travelers and employees between the airport's terminal buildings and parking lots. These buses will replace older, LPG-powered buses currently in service, and after this order, 100% of the airport's bus fleet will use the Cummins Westport 195- horsepower B LPG Plus engine.

Hugh Foden, President of Cummins Westport said, "We are pleased that the Ontario International Airport has chosen to switch their entire bus fleet to the B LPG Plus. The airport needs a robust and reliable bus engine because their fleet operates 24 hours a day, 5,000 hours per year with minimal downtime. As we continue to build market awareness, we are confident more mid- size truck and bus customers will also see the value of choosing our proven Plus technology for their next LPG engine."

The 195-horsepower B LPG Plus engine features the same advanced technologies found in the Cummins Westport C Gas Plus and B Gas Plus natural gas engines. These features include: drive-by-wire technology, advanced electronic controls, improved sensors, knock detection and wider range fuel capability. The engine is available in new vehicles manufactured by Elgin Sweeper Co., Ottawa Truck, and DaimlerChrysler Commercial Truck and others.

The low-emissions, spark-ignited LPG engine is ideal for mid-size delivery trucks, shuttle buses, school buses, sweepers, yard spotters and refuse trucks in geographic areas where LPG is available and economical. In the U.S., over 280,000 LPG internal combustion engines were in operation in 2002 and worldwide, nearly 4 million vehicles run on LPG.

The B LPG Plus engine is certified to emit 12% less oxides of nitrogen and non-methane hydrocarbons and 70% less particulate matter than the coming 2004 ceilings established by the U.S. Environmental Protection Agency (EPA) for heavy-duty trucks and buses.

Cummins Westport, a joint venture of Cummins Inc. and Westport Innovations Inc. (TSX:WPT), develops and markets low-emissions alternative fuel engines manufactured by Cummins. Cummins is a global power leader in engines, electrical power generation systems and related technologies. Westport Innovations is the leading developer of clean natural gas- and hydrogen-fueled engines. Cummins Westport Inc., formed in 2001, develops and markets low-emissions alternative fuel vehicle engines manufactured by Cummins.