Enlarge / Lane keeping systems let you take your hands off the wheel while you drive. (credit: Getty Images) The seductive lure of cars that drive themselves has led to an awful lot of hype over the past decade. Not everyone enjoys driving, after all, and the idea of freeing up the occupant to read their emails or watch a movie as their car grinds its way to their job led to billions in investments and a whole heck of a lot of GPU sales.