Who remembers that Jaguar 'innovation' of years ago - the one where a small wheel came down from underneath the car, lifted the rear, and slid it sideways into a parking slot?
All you had to do was get the front end into the space and hydraulics did the rest - at least, that was the idea. I don't think it ever made it into production models, but I could be wrong.
This idea is a good deal more sophisticated, and the technology is tried and tested - I'm sure it will be a big selling point. That's my red car in the clip, by the way.