2015 International CES in Las Vegas (29 images)

The Mercedes-Benz F015 Luxury in Motion autonomous concept car is displayed at the 2015 International CES, a trade show of consumer electronics, in Las Vegas, Nevada, January 6, 2015. The vehicle, which was unveiled on Monday night and on display for only one day of CES, is headed to Detroit for the North American Auto Show which opens January 12. Photo by Molly Riley/UPI

The Mercedes-Benz F015 Luxury in Motion autonomous concept car is displayed at the 2015 International CES, a trade show of consumer electronics, in Las Vegas, Nevada, January 6, 2015. The vehicle, which was unveiled on Monday night and on display for only one day of CES, is headed to Detroit for the North American Auto Show which opens January 12. Photo by Molly Riley/UPI

The Mercedes-Benz F015 Luxury in Motion autonomous concept car is displayed at the 2015 International CES, a trade show of consumer electronics, in Las Vegas, Nevada, January 6, 2015. The vehicle, which was unveiled on Monday night and on display for only one day of CES, is headed to Detroit for the North American Auto Show which opens January 12. Photo by Molly Riley/UPI

Agathe Chavand displays Rollkers, a personal transportation device, during CES Unveiled, prior to the 2015 International CES, a trade show of consumer electronics, at Mandalay Bay in Las Vegas, Nevada, January 4, 2015. Photo by Molly Riley/UPI