A PAV-equipped car is ringed with cameras and ultrasonic sensors, and when you find a spot you want, you select it on a touchscreen. You place the car in "P" and get out if you have that much faith in technology not to scratch your paint. Your remote control keyfob tells the car what to do from then on, and the car parks itself, shuts down and locks itself up, as any happy
PAV is still in development, but it's a neat idea. It could especially come in handy when trying to slip into one of those ever-shrinking "compact" parking spaces, since it's so hard to get out of the car once you get in the space. Now if they could develop a feature that actually locates available parking spaces for you, we'd be in business.