You would need plenty of space to store them when they were not in use but they are a superb idea 8)Fast Eddy wrote:Funny you should mention this sort of thing.
I have commisioned a guy to make me something like this, but better.
http://www.levo-artis.com/index.html
It will work off a single trolly jack with a beam to lift the back once the car is on.
Eddy
The idea of a pit is OK depending on where you live. My oldman had one dug when he had an extension built on his garage but he has never been able to stop it from filling up with water because it is below the water table
