Double decker

The pop-up Cardok garage uses a silent hydraulic platform which can be hidden under a water feature, gravel, or even a second car.

Double decker: A lift strong enough for another car to be parked on top of it costs £48,000 plus VAT and installation.

http://www.dailymail.co.uk/sciencetech/article-1164367/Park-hide-Sales-double-Thunderbirds-style-pop-garage-sinks-drive.html