Audi forced into 'fight-back mission' as odd incident wrecks midfield duel

Audi boss Allan McNish has described the "fight-back mission" the team was forced to launch in the United States following an odd issue on Nico Hulkenberg's car.

The German lined up 11th in Austin, but at the start, he bogged down after triggering anti-stall and fell into the lower midfield as rivals stormed past.