Audi A7 Sportback h-tron (2014)

The A7 Sportback h-tron quattro now has a range of more than 500 km (311 mi) on one tank of fuel. The study uses an electric drive system with a fuel cell as its energy source, combined with a hybrid battery and an electric engine in the rear. Its drive system makes the zero-emission, 170-kilowatt technology demonstrator a true quattro – a first among fuel cell cars. As an e quattro, the A7 Sportback h-tron quattro features fully electronic control of the torque distribution.