Please be aware that none of the current Tesla's are self driving cars. They are not even advertised that way, though you might be fooled by the Tesla website. Enhanced Autopilot is an excellent driver assistance feature, but you must remain alert and vigilant. I've had my Model S for just over a year. It is the best vehicle I've ever owned. I use autopilot sparingly, mostly on empty stretches of road when few other vehicles are around and the road is well marked.