I've wanted a set of these since I saw them a couple of years ago but they were just to heavy to ship out to Dubai. . . . . . . . . Until now.
They are a set of hydraulic car ramps.
Six inches colapsed.
A few pumps and 15 inches height so lots of clearance.
I will post more details once I have a chance to use them a few times.
They are from CJ Auto in the UK, this is their site here.
Many thanks to Spencer at SVDP Racing for letting me steal some of the space in his container.
Next . . . . . . Another got at the Autodrome I think :-)