Garage pit - anyone built one?

[tvrbob]

Years ago I remember seeing a prefabricated GRP pit in a car mag (pre www days). Dig the hole, fit the pit and backfill with sand. I've scoured the net but can't find anything. Has anyone built one or know of a supplier?

[tvrbob]

Nevin said:

Get yourself one of these beauties instead for only £2k. Hours of fun and practical too. www.machinemart.co.uk/product.asp?p=020110413&r=2051&g=107

I have seriously considered one of those full-length car ramps that auto retailers use to display 4x4's. Drive all the way on and then either leave one end of your car 6" off the ground or seesaw it level at 3" off the ground. Chassis work would be a doddle.