Here's an unusual turn of events: Audi is dropping its best-known presence in motorsports. The car maker is terminating its FIA World Endurance Championship commitment, which includes 24-hour Le Mans races, in favor of a Formula E factory-backed team. If you ask executives, it's about reflecting long-term goals. Audi's regular cars are going electric in ever-larger numbers -- when its race cars are "technological spearheads," they have to go electric as well. The company already has a partnership in the league, but it'll have technical involvement from 2017 onward.