Green cars from the Frankfurt Motor Show

At the European auto show, car makers are showing off plans for fuel-sipping cars of the future as well as a few for today.

Mercedes-Benz F700 concept
The F700 uses what Mercedes calls a "DiesOtto" engine. The name is a combination of "Diesel" and "Otto" after the "Otto cycle" engine that powers most gasoline-fueled cars today.

The four-cylinder engine uses gasoline but operates more like a diesel. That results in higher fuel economy, like a diesel, but with cleaner emissions, like a gasoline engine. Power is similar to a V6-powered car, according to Mercedes-Benz.

To improve ride comfort, the F700 uses lasers to scan the road ahead of the car so that suspension can automatically adjust for road imperfections. The car's back seats can be rotated to face toward the back


BMW

Smart

Opel

Volkswagen

Volkswagen

Volvo

Toyota

Mitsubishi

Mercedes-Benz

Ford

Mercedes-Benz
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