Cummins Westport Inc.

Cummins Westport Inc.
Westport Innovations Inc.
TSX : WTP

Westport Innovations Inc.

December 04, 2006 08:31 ET

Cummins Westport Completes 531 Unit Engine Sale to Orange County Transportation Authority

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - Dec. 4, 2006) - Cummins Westport Inc. (TSX:WPT) ("CWI"), a leading provider of high-performance alternative fuel engines for the global market, announced today that Orange County Transportation Authority (OCTA) has ordered 531 CWI engines to be installed as a combination of new installations and repowers (installation of a new power plant in an existing chassis). The new installations will begin in March 2007 and the repowers will begin in May 2007. The 531 engine order is made up of both the 2007 ISL G and the C Gas Plus engine models.

"We are pleased that OCTA has chosen CWI engines for their transit bus fleets. This represents our second major order for our new industry-leading 2007 ISL G. These new engines will enable OCTA to operate one of the cleanest fleets in the country," said Gordon Exel, CWI's Vice-President and General Manager, Americas. "The combination of low emission technology and strong local support from Cummins Cal Pacific will provide OCTA with reliable products and service for many years to come."

Ted Nguyen, OCTA's Manager of Public Communications, said, "OCTA is pleased to be taking this major step toward enhancing our state-of-the-art fleet. Our selection of Cummins Westport's 2007 ISL G and Cummins Cal Pacific for local support and installations will assist OCTA in delivering on our commitment to provide both efficient and environmentally-superior service to the people of Orange County."

About the Cummins Westport 2007 ISL G

The ISL G will surpass EPA and CARB 2007 phase-in levels and meet 2010 emission standards of 0.2 g/bhp-hr NOx and 0.01 g/bhp-hr PM at launch in 2007. Based on the Cummins ISL, the ISL G leverages Cummins proven Exhaust Gas Recirculation ("EGR") and stoichiometric combustion allowing for the use of a three-way catalyst, which is maintenance free and has been in common use in passenger cars since the 1970s. In addition to delivering ultra low emissions, the ISL G, with ratings from 250 to 320-horsepower, will deliver increased thermal efficiency and more than 30 percent higher low-speed torque compared with today's "Plus" engines. More information about the ISL G can be found at: http://www.cumminswestport.com/products/islg.php.

About the Orange County Transportation Authority

The Orange County Transportation Authority (OCTA) is a multi-modal transportation agency serving Orange County, California. In addition to operating a fleet of more than 500 buses, OCTA also has authority over commuter-rail services, freeways, street and road improvement projects, motorist aid services and regulating taxi operations. In 2005, OCTA was voted America's Number 1 Transportation System by the American Public Transportation Association. www.octa.net

About Cummins Cal Pacific

Cummins Cal Pacific, LLC is the exclusive distributor for Cummins Inc. in Southern California from Ventura County south including Baja Mexico and is dedicated to exceptional service and customer satisfaction. Complete service is delivered by certified technicians in the field or at one of the six Cummins Cal Pacific facilities. Cummins Cal Pacific also provides technical support and genuine parts for the select Cummins network of dealers in Southern California. www.cumminscalpacific.com

About Cummins Westport Inc.

Cummins Westport Inc., a joint venture of Cummins Inc. (NYSE:CMI) and Westport Innovations Inc. (TSX:WPT), manufactures and sells the world's widest range of low-emissions alternative fuel engines for commercial transportation applications such as trucks and buses. Westport Innovations is the leading developer of technologies that allow engines to operate on clean-burning fuels such as natural gas, hydrogen, and hydrogen-enriched natural gas (HCNG). www.cumminswestport.com

Note: This document contains forward-looking statements about Cummins Westport's business, operations, technology development or to the environment in which it operates, which are based on Cummins 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 Cummins 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. Cummins 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.

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