Today’s invention addresses the problem of space to park our cars.
By using simple, steeply-raked ramps as shown, cars could be parked very closely together, thus using 1.41 times less space. (This is a solution related to storing fighter planes on a carrier deck).
This might require people to access their vehicle via a port in the floor, but that would make car bodies stronger and therefore safer in a collision.
These ramps need only be like those in car showrooms…for presenting vehicles at a racy angles. Much better than acres of tarmac.
See this BBC article
http://m.bbc.co.uk/news/magazine-17271118