£250 I can deliver for the cost of petrol (I only get 20 MPG though)
Picture http://www.locostbuilders.co.uk/photos.php?action=showphoto&photo=2DSC00382.JPG
I am clearing out my garage and have my "big" car ramps for sale.
these are around 15feet long, raise the car to give 2 feet clearance.
they use the see saw idea to raise and the lay flat. simply prop the back end and you have full access.
Plenty room to use in a single garage.
They are made of 50x50 3mm angle with 25x25 x 3mm treads.
I have used them for my Lexus RX with no bother.