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Volkswagen XL1
Volkswagen is calling this the most fuel-efficient production car in the world. The XL1 plug-in hybrid is expected to get about 261 miles per gallon, according to VW. It has an all-electric driving range of about 31 miles.
The two-seat car weights just 1,700 pounds. It's powered by a combination of electric motors and a two-cylinder diesel engine. The car's two occupants don't sit quite side-by-side but, to maximize comfort in a tight space, the passenger's seat is slightly farther back than the driver's.
- Last updated March 05 2013 12:50 PM ET
