While we were looking at 3D TVs, CES morphed into an auto show

CES has been held in Las Vegas since the beginning of time (actually since 1978 and it started in Chicago way back in 1967) and over those years, many a tech trend has come and gone. Remember the year of IOT (that's every year since 2013, apparently)? TVs, audio players, robots and blinking lights are always a mainstay, but in the past few years, something else has been creeping into the hallowed halls of the Las Vegas Convention Center: cars. It's not like CES was always devoid of vehicles. Audi's had a booth in the North Hall since 2011.