Pretty rubbish idea. I can see loads of queues when it is busy. A good car park is the Westfield carpark in Sheperds Bush. It has excellent lighting to direct you to empty car spots. Each bay has lights telling you if it is open or occupied and each row has a display telling you how many spots are open. It was like parking in a space station. Was very cool. This robotic thing will just break down and cause problems and during busy periods will be absolutely jammed.