Volkswagen Caught Testing XL1 Ultra Efficient Car

The Volkswagen XL1Volkswagen XL1Germany, 2011 > 201119 photos
might be the Bugatti VeyronBugatti VeyronGermany, 2000 > present27 versions
220 photos
2 videos
of efficiency. Where the Veyron pushed the limits how fast a car could be, the XL1 will attempt is slated to use 0.9l/100km (261mpg). 

The XL1 will use an 800cc, two-cylinder diesel engine that produces 47hp and a 27hp electric motor with a seven-speed DSG. The engine is mid-mounted and sends power to the rear wheels, and it seats just two people. The top speed is limited to 160km/h (99mph), and it can drive up to 35km/h (22mph) purely on the electric engine. 

In addition to the engine, the efficiency comes from two factors - low weight and great aerodynamics. The XL1 weighs a scant 795kg, and as you can see from the pictures lacks even side view mirrors. Instead there are rear-facing cameras with screens inside the car. The coefficient of drag is 0.186.

VolkswagenVolkswagenGermany, 1938 > present98 models
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31 videos
CEO Dr. Martin Winterkorn says that production will start in low numbers in 2013. Germany will be the first market where the cars go on sale. 

Source: Autoblog and Carscoop