This is pretty cool. Ford is not the first to bring this parking tech to production, but they are definitely the first of the big car makers to do so.
FAPA uses ultrasonic sensors to scan for an open parking space at speeds as high as 19 mph (30 kph). When the car finds a suitable spot it alerts the driver, who can stay in the car or get out and use a remote to finish the parking job. The car then backs itself in to the parking space.
Amazing. The car scans for available parking spaces in real time, as you drive. The car alerts you that it found a space, you get out, and the car parks itself. The future!