Wanted: Car ramps

I cant help. But - have you used ramps before? Only they're useless. Unless you nail them to the ground they slide all over the place. Why not just jack the car up and support it on car jacks. oh- you'll ask where to get car jacks I guess!

Anyway - always use two means of support for a car. Not worth the risk of getting crushed. 

Thanks very much for the advice and suggestions.  We have used them before but they were one of the things left behind when we moved, now we find we need some again.