Audi RS7
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Audi self-drive car races at 149mph at German racetrack

Audi has claimed a speed record for a self-driving car.

The automaker says its RS7 vehicle topped 149mph (240km/h) while driving unmanned round the Hockenheim racing circuit, south of Frankfurt.

The car took just over two minutes to complete a lap of the Grand Prix track.

Sunday's stunt was organised to highlight the firm's efforts to bring "piloted driving" to road vehicles.

The video above was edited by the BBC using footage provided by Audi.