I'd love to delegate that part of driving to my car. Automatically maintain speed limit (+5 mph or so, or I'll be tailgated the whole way home) and following di

I'd love to delegate that part of driving to my car. Automatically maintain speed limit (+5 mph or so, or I'll be tailgated the whole way home) and following distance to the car in front of me. I'll just cover the brake and tap it if I see something wrong in front, at which time it can revert to manual speed control. Bonus points for maximum performance acceleration without overshoot to the speed limit if I am the first one stopped at a red light when it turns green. Adaptive cruise control is awesome, but the implementations I've used are unaware of the road's speed limit.