Westport Innovations Inc.

Westport Innovations Inc.

July 21, 2005 17:17 ET

Westport Announces First Quarter Conference Call for July 28, 2005

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - July 21, 2005) - Westport Innovations Inc. (TSX:WPT) announced today that it will disclose its first fiscal quarter financial results on July 28, 2005. To coincide with the disclosure, Westport has scheduled a conference call for Thursday, July 28, 2005 at 8:00 am Pacific Time.

The public is invited to listen to the conference call in real time or by replay. To access the conference call by telephone, please dial: 1-800-936-9754 (North America Toll-Free) or 1-973-935-2048 (International). Alternatively, the webcast of the conference call can be accessed through the Westport web site at www.westport.com by selecting "Our Investors", and then selecting "Conference Calls & AGMs" from the top menu. Replays will be available in streaming audio on the same website shortly after the conclusion of the conference call.

About Westport Innovations Inc.

Westport Innovations Inc. is the leading developer of technologies that allow engines to operate on clean-burning fuels such as natural gas, hydrogen, and hydrogen-enriched compressed natural gas (HCNG). Westport has technology development alliances in place with Ford, MAN, BMW, and Isuzu, and an ownership interest in Clean Energy, the largest provider of natural gas for vehicles in North America. Cummins Westport Inc., Westport's joint venture with Cummins Inc., manufactures and sells the world's widest range of low-emissions alternative fuel engines for commercial transportation applications such as trucks and buses.

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