It was, conservatively, 90 seconds before I was satisfied Cadillac’s Super Cruise semi-autonomous driving system wasn’t going to kill me. By that point, a combination of cameras, super-accurate maps, and a fancier-than-usual GPS system were keeping me dead-center at 65 mph on California’s 280, headed north toward San Francisco. As the CT6 eased its way around the corners, I spent a few moments considering that the car of the future apparently communicates not with the voice of Mr Feeny from Boy Meets World, but with a glowing green steering wheel instead.