Westport Announces Advanced LNG Tank System for Natural Gas Trucks

~New System Improves Performance, Extends Range and Reduces Costs,
Begins Shipping by mid-2013 ~

VANCOUVER, Nov. 26, 2012 /PRNewswire/ – Westport Innovations Inc. (TSX:WPT)
(NASDAQ:WPRT), the global leader in natural gas engines, today
announced a unique on-board storage solution that provides best in
class performance for vehicles using liquefied natural gas (LNG). The
new Westport(TM) LNG Tank System, will be available in 120 and 150 gallon
capacities, is optimized for spark ignited (SI) engines and begins
shipping by mid-2013. The Westport LNG Tank System features proprietary
Westport technology and is expected to provide customers with the
ability to fuel even the largest SI engines on a single tank and
deliver extended range.

Key characteristics of the new Westport LNG Tank System:

        --  Current industry standard systems require two LNG tanks to
            operate effectively with larger SI engines and require warm
            (saturated) LNG. The Westport LNG Tank System is optimized for
            trucks running even the largest SI engines, reducing the
            overall fuel system costs and weight dramatically with the
            single-tank option.
        --  The 120 gallon or 150 gallon single-tank systems can run for
            approximately 350 to 450 miles, respectively, on cold
            (unsaturated) LNG fuel. Those ranges double for dual-tank
            configurations.
        --  Fuel-flexibility with the ability to carry both cold and warm
            LNG.
        --  By carrying fuel as cold LNG, the Westport LNG Tank System can
            increase fuel storage times and improve vehicle range by up to
            10 percent.
        --  Universal system design allows for any original equipment
            manufacturer (OEM) to integrate.
        --  Compared to existing compressed natural gas (CNG) options, a
            single 150 gallon Westport LNG Tank System takes the place of
            three standard CNG tanks, lowering fuel storage costs and
            reducing overall vehicle weight by approximately 600 lbs.
            Additionally, LNG has shorter refuelling times compared to CNG.
        --  Customers receive a two year / 250,000 mile warranty along with
            access to field service from Westport-trained personnel.
        --  Westport Active System Management features proprietary control
            algorithms and connects with standard engine controllers to
            allow fuel delivery to match driving patterns.
        --  An advanced driver display that indicates not only the LNG fuel
            levels, but also status and diagnostic information about the
            tank and integrated pumps.
        --  Fleets with a combination of SI and Westport(TM) HPDI trucks
            can now rely on the same LNG refuelling infrastructure due to
            the system's fuel-flexible capabilities.

“Our early production systems tested with the Cummins Westport ISX12 G
in a Peterbilt 384 truck have proven to have excellent performance
characteristics and superior operating results on a single tank,” said
Steve Anderson, Westport HD Vice President of Business Development. “We
believe this is the only on-board fuel system for LNG-fueled engines
that can operate on a single tank using range-extending cold LNG.”

“Thanks to the flexibility and range of the Westport LNG Tank System,
fleet operators can now use the same cold LNG and technology across
their fleet in a range of vehicle and engine sizes,” said Anderson.

About Westport Innovations Inc.

Westport Innovations Inc. is a leading global supplier of proprietary
solutions that allow engines to operate on clean-burning fuels such as
compressed natural gas (CNG), liquefied natural gas (LNG), hydrogen,
and renewable natural gas (RNG) fuels such as landfill gas and helps
reduce greenhouse gas emissions (GHG). Westport technology offers
advanced LNG fueling systems with direct injection natural gas engine
technology for heavy-duty vehicles such as highway trucks and off-road
applications such as mining and rail. Westport’s joint venture with
Cummins Inc., Cummins Westport Inc. designs, engineers and markets
spark-ignited natural gas engines for North American transportation
applications such as trucks and buses. Westport LD division is one of
the global leaders for natural gas and liquefied petroleum gas (LPG)
fuel in passenger cars, light-duty trucks and industrial applications
such as forklifts. To learn more about our business, visit our website
or subscribe to our RSS feed at www.westport.com, or follow us on Twitter @WestportWPRT.

This press release contains forward-looking statements, including
statements regarding  the timing for availability of the referenced LNG
tanks, driving ranges and expected tank capacities, the performance and
competitiveness of Westport’s products and expansion of product
coverage, future market opportunities as well as Westport management’s
response to any of the aforementioned factors. These statements are
neither promises nor guarantees, but involve known and unknown risks
and uncertainties and are based on both the views of management and
assumptions that may cause our actual results, levels of activity,
performance or achievements to be materially different from any future
results, levels of activities, performance or achievements expressed in
or implied by these forward looking statements. These risks,
uncertainties and assumptions include risks and assumptions related to
the effectiveness of and our ability to deploy our technology, our
revenue growth, operating results, industry and products, the general
economy, conditions of and access to the capital and debt markets,
governmental policies and regulation, technology innovations,  the
availability and price of natural gas and natural gas refuelling
infrastructure,  global government stimulus packages, the acceptance of
and shift to natural gas vehicles, the relaxation or waiver of fuel
emission standards, the inability of fleets to access capital or
government funding to purchase natural gas vehicles,  the development
of competing technologies, as well as other risk factors and
assumptions that may affect our actual results, performance or
achievements or financial position discussed in our most recent Annual
Information Form and other filings with securities regulators. Readers
should not place undue reliance on any such forward-looking statements,
which speak only as of the date they were made. We disclaim any
obligation to publicly update or revise such statements to reflect any
change in our expectations or in events, conditions or circumstances on
which any such statements may be based, or that may affect the
likelihood that actual results will differ from those set forth in
these forward looking statements except as required by National
Instrument 51-102. The contents of any website, RSS feed or Twitter
account referenced in this press release are not incorporated by
reference herein.

SOURCE Westport Innovations Inc.