Popular Mechanics published this on a new prototype that VW is looking at producing.
Here's the link;
http://www.popularmechanics.com/cars...atest+Content)
Here is what they said about it's aerodynamics;
"With a frontal area of 16.15 square feet and a drag coefficient of 0.186, the XL1 is one of the slipperiest cars in the world."
Not bad looking...
