This electric muscle car (pictured above) stole the show, acting as a design showcase for the future of Peugeot (which, may or may not be coming back to the US someday) and also showing what a future fully autonomous car could look like on the inside. A throwback to the long-running Peugeot 504 coupe, the exterior design is breathtaking -- while the interior is crazy enough to remind you that the E-Legend is a concept and won't be hitting showrooms tomorrow. "Wood-look" panels, a massive 49-inch curved screen and a small, retractable (for autonomous driving) steering wheel mix and match the past and future.