Audi's self-driving RS 7 hits the racetrack this weekend
 

Audi, who's long been toying with the idea of building self-driving cars, has upgraded one of its RS 7 sedans to build an autonomous concept vehicle for those who like to ride fast. The prototype looks pretty much like a production version RS 7,...

http://www.engadget.com/2014/10/17/a...=rss_truncated