Most prototype self-driving cars are designed for comfort, not performance. After all, wouldn't you want to take the wheel if you really wanted a thrill? Rinspeed thinks there's a case to be made, though: it just teased the Σtos, an autonomous sports car concept. The vehicle still has a steering wheel for those hands-on moments, but the controller automatically retracts into the dashboard when you're content to let the car do all the hard work. Two curved widescreen displays also move closer into view in this mode, and there's even a drone (complete with a landing pad) that could deliver goods or record your adventures on camera.