The Nano from Indian carmaker Tata is pictured outside Bombay, India. At approximately $2,500, it has been called the cheapest car in the world.
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Pascal Saez/Sipa Press/Newscom
Daimler's tiny Smart car is seen parked perpendicular to the sidewalk. It occupies the same amount of space as a couple of motorcycles.
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Filippo Monteforte/Stan Honda/AFP/Newscom
The Fiat 500, produced from 1957-1975, was one of the world's first small and cheap city cars and proved enormously popular across Europe.
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Karen Bleier/AFP/Getty Images/Newscom
Delegates to an Electric Drive Transportation Association's conference take a ride in a Neighborhood Electric Vehicle (NEV) on Capitol Hill in Washington, DC. The NEV is an electric low-speed vehicle that can plug into a regular home electrical outlet.
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The 2010 Mini John Cooper Works Convertible is seen. The first Mini Coopers were made in 1959 and are considered by some to be the British equivalent of Germany's Volkswagen Beetle. Mini-branded vehicles produced since 2001 are made by BMW.
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Suzuki Motor Corp.'s Wagon R minicar is the bestselling vehicle in Japan. The Wagon R is classified as a Kei car in Japan, a vehicle-class exempt from certain taxes and requirements.
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PRNewsFoto/REVA Electric Car Company/Newscom
The new REVA NXR electric car from India is suitable for urban driving with a range of 100 miles per charge and goes into production in early 2010. REVA is currently the world's leading electric car manufacturing company.
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The Mitsubishi Miev is displayed during the Los Angeles Auto Show on Dec. 2, 2009 in Los Angeles, Calif. Miev stands for Mitsubishi In-wheel motor Electric Vehicle, and is propelled by battery-fueled electric motors located in the wheels.
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In the eyes of the Department of Transportation, the Myers Motors NmG is a motorcycle: a single passenger, three-wheeled vehicle designed for short range commuting.
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Nissan's newest all-electric car concept, the Nuvu, maneuvers easily, is made of natural and recycled materials, and has no carbon emissions.