Cummins Westport Delivers 103 Engines for New Buses in California.

VANCOUVER, British Columbia -- Cummins Westport Inc. (CWI) today announced that 103 more of its C Gas Plus natural gas engines are powering transit buses for The San Diego Metropolitan Transit System and North County Transit District in the San Diego area of California.

The San Diego Metropolitan Transit System (MTS), the largest transit provider in the county of San Diego, has just taken delivery of 47 coaches for its largest bus operator, San Diego Transit, and several MTS contract bus operators. The new fleet is powered with the 8.3-liter C Gas Plus natural gas engine. Claire Spielberg, Chief Operating Officer for MTS Bus, said, "San Diego Transit now has 143 buses powered by CWI C Gas Plus engines. That represents fifty-two percent of our entire fleet. Maintenance and Operations staff have found the engines to be very reliable and we are very pleased with their performance. The region has chosen CNG as our alternate fuel path and our organization is making every effort to improve the air quality."

North County Transit District (NCTD), another public transit operator within San Diego County, is about to receive the final of two recent orders totalling 56 buses, all powered by CWI C Gas Plus engines. "North County decided to operate the CWI C Gas Plus engine to achieve the benefits of natural gas engine technology, which include cleaner air. CWI engines assist to maintain the fleet performance and reliability our customers are used to and expect," commented Mike Wygant, Maintenance Manager for NCTD. The transit company operates 79 buses powered by Cummins Westport natural gas engines, comprising approximately 50% of their total bus fleet.

"City governments and transit operators recognize the immediate need to improve air quality in their communities and address energy security for transportation while achieving their economic objectives. Cummins Westport's low-emissions C Gas Plus natural gas engine has been the engine of choice for transit operators in San Diego County. These customers continue to demand the reliability, performance, and economic benefits that CWI engines have to offer and we continue to advance our technology to improve our products over time," said Guan Saw, President of Cummins Westport Inc. "San Diego has taken great interest and considerable action to ensure the environmental as well as economic needs of its community are addressed."

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. Cummins is a global power leader in engines, electrical power generation systems, and related technologies. 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).

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.