2012 Beijing: Audi A6 L e-tron Concept can go 50 miles without using gas
At the 2012 Beijing Motor Show, Audi is showing its first luxury-class e-tron concept car based on the new Audi
Read MoreAt the 2012 Beijing Motor Show, Audi is showing its first luxury-class e-tron concept car based on the new Audi
Read More