The newer Mercedes will lock onto the car in front of you with a some sort of laser and will adjust speed accordingly if that car becomes too close!!!!
reading books, putting on make-up, smaking the kids, scarfing on cheese burgers... I've seen it all.
Whats crazy is how countries like Germany and Japan are so serious about driving, and America just doesn't get it. Getting your license in one of these countries is NO joke. In Germany, they don't even have cup holders in most cars!!!!