If you have a spare Ferrari lying around but don't have the space for it, Cardok is a viable solution to storing it away when you're too busy driving your other supercars.
Cardok allows you to have another car parking space hidden away underground. You can then park another car on top, with a weight of up to 3 tons. The top can be designed to fit in with the rest of the environment so it looks inconspicuous.
The bottom deck can be go up and down in just thirty seconds and is operated by a remote control.
Each installation is custom made so there is no set price, but I'm sure it'll easily cost a few grand.