Clean Diesel Technologies, Inc. Chosen as Catalyst Supplier to Fisker Automotive

VENTURA, California, July 19, 2011 -

Fisker Karma, the world’s first
premium plug-in hybrid electric vehicle, to use Clean Diesel’s
patented mixed phase catalyst technology to help
achieve low emission output

Clean Diesel Technologies, Inc. (NASDAQ: CDTI) (”Clean Diesel”),
a cleantech emissions reduction company, announced today that it
has been chosen as a catalyst supplier to Fisker Automotive
(”Fisker”), an American manufacturer of the first premium plug-in
hybrid electric vehicles with extended range. Clean Diesel is
supplying catalysts utilizing its patented mixed phase catalyst
(MPC®) technology for the Karma, Fisker’s new luxury sedan, which
starts shipping to both European and U.S. retailers this month.

With a price range between $95,800 and $108,000, the Karma
combines world-class style and performance with some of the lowest
emissions among electric vehicles with extended range. According to
Fisker, this is the world’s first true Electric Vehicle with
extended range (”EVer™”). Clean Diesel commenced catalyst shipments
to Fisker in the first quarter ended March 31, 2011.

“This is a new developing market for Clean Diesel; we are proud
that Fisker has chosen us as the exclusive catalyst supplier for
the highly innovative Karma, a vehicle we believe will set new
standards for environmental sustainability and accountability,”
said Charles Call, Chief Executive Officer of Clean Diesel. “Clean
Diesel has long been active in the research and development of more
cost-effective solutions for automotive catalytic converters as
emission standards around the world continue to tighten. Through
this ongoing process, our team has developed proprietary and
patented catalyst technology for state-of-the-art gasoline engines
that meet Fisker’s high performance standards,” added Mr. Call.

Bernhard Koehler, Chief Operating Officer of Fisker said, “The
launch of the Fisker Karma is a breakthrough in the important new
class of high performance electric vehicles with extended range -
demonstrating innovation in design and engineering. The choice of
Clean Diesel as the catalyst supplier allows us to access the
best-in-class emissions control technology.”

Increased pressure on fuel economy has led to a series of
innovative powertrain options such as hybrid, gasoline direct
injection and expanded use of turbo-chargers. Clean Diesel offers a
wide range of fully-developed products to meet new, higher
performance requirements at reduced precious metal levels. In
addition, the design versatility of Clean Diesel’s MPC® technology
facilitates the sustainable use of precious resources while
enabling customers to meet rapidly evolving emission control
requirements with confidence.

About Fisker Automotive

Fisker Automotive is an American car company, founded in 2007,
committed to producing electric vehicles with extended range (EVer)
that deliver uncompromised responsible luxury. The Fisker Karma
Sedan is the world’s first premium electric plug-in hybrid
representing the company’s firm belief that environmentally
conscious cars need not sacrifice passion, style, or performance.
Fisker Automotive is a global company that is redefining luxury for
the modern sports car buyer. For more information on the brand and
the Fisker Karma sedan, please go to href="fiskerautomotive.com/">fiskerautomotive.com.

About Clean Diesel Technologies, Inc.

Clean Diesel is a vertically integrated global manufacturer and
distributor of emissions control systems and products, focused on
the heavy duty diesel and light duty vehicle markets. Clean Diesel
utilizes its proprietary patented Mixed Phase Catalyst (MPC®)
technology, as well as its ARIS® selective catalytic reduction,
Platinum Plus® fuel-borne catalyst, and other technologies to
provide high-value sustainable solutions to reduce emissions,
increase energy efficiency and lower the carbon intensity of on-
and off-road engine applications. Clean Diesel is headquartered in
Ventura, California and currently has operations in the U.S.,
Canada, U.K., France, Japan and Sweden. For more information,
please visit href="www.cdti.com/">www.cdti.com.

Forward-Looking Statements Safe
Harbor

Certain statements in this news release, such as those relating
to plug-in hybrid electric vehicles being a developing market,
constitute “forward-looking statements” within the meaning of the
Private Securities Litigation Reform Act of 1995. Such
forward-looking statements involve known or unknown risks,
including those detailed in Clean Diesel’s filings with the U.S.
Securities and Exchange Commission, uncertainties and other factors
that may cause the actual results, performance or achievements of
Clean Diesel to be materially different from any future results,
performance or achievements expressed or implied by such
forward-looking statements. Readers are cautioned not to place
undue reliance on these forward-looking statements, which speak
only as of the date hereof. Clean Diesel assumes no obligation to
update the forward-looking information contained in this
release.

For additional information, please
contact:

    Investor Contact: Kristi Cushing
                      Tel: +1 (805) 639-9458
                      Email: kcushing@cdti.com

    Media Contact:    Stacy Dimakakos
                      Tel: +1 (917) 981-5501
                      Email: stacy@corporateprofile.com

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