As part of a demonstration of its new powertrain, the E-Tron has managed to climb the steepest section of Kitzbuhel's Streif downhill ski course in Austria. Audi did have to make some adjustments to the platform including a second electric motor on the rear axel, to make climbing this 85 percent gradient possible. They also made some changes to software and equipped it with 19 inch wheels with studded tires. Have a look at this impressive feat.