A couple gets into the Mercedes-Benz F015 Luxury in Motion autonomous concept car during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. Germany's Daimler AG wants to reset consumers' expectations about self-driving cars with its futuristic Mercedes-Benz F 015 concept, unveiled Monday evening at the annual Consumer Electronics Show in Las Vegas. REUTERS/Steve Marcus

Dieter Zetsche, head of Mercedes-Benz cars, talks about the Mercedes-Benz F015 Luxury in Motion autonomous concept car during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. Germany's Daimler AG wants to reset consumers' expectations about self-driving cars with its futuristic Mercedes-Benz F 015 concept, unveiled Monday evening at the annual Consumer Electronics Show in Las Vegas. REUTERS/Steve Marcus

The Mercedes-Benz F015 Luxury in Motion autonomous concept car is shown on stage during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. Germany's Daimler AG wants to reset consumers' expectations about self-driving cars with its futuristic Mercedes-Benz F 015 concept, unveiled Monday evening at the annual Consumer Electronics Show in Las Vegas. REUTERS/Steve Marcus

The front of the Mercedes-Benz F015 Luxury in Motion autonomous concept car is shown during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. Germany's Daimler AG wants to reset consumers' expectations about self-driving cars with its futuristic Mercedes-Benz F 015 concept, unveiled Monday evening at the annual Consumer Electronics Show in Las Vegas. REUTERS/Steve Marcus

The Mercedes-Benz F015 Luxury in Motion autonomous concept car is shown on stage during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. Germany's Daimler AG wants to reset consumers' expectations about self-driving cars with its futuristic Mercedes-Benz F 015 concept, unveiled Monday evening at the annual Consumer Electronics Show in Las Vegas. REUTERS/Steve Marcus

The Mercedes-Benz F015 Luxury in Motion autonomous concept car is shown on stage during the 2015 International Consumer Electronics Show (CES) in Las Vegas, Nevada January 5, 2015. Germany's Daimler AG wants to reset consumers' expectations about self-driving cars with its futuristic Mercedes-Benz F 015 concept, unveiled Monday evening at the annual Consumer Electronics Show in Las Vegas. REUTERS/Steve Marcus