"Ok, some rule of thumb maths here.
Let's say a standard 4x4 car (I drive an X-Trail for instance) is 1.8 metres high. It's approx 4 metres long, by 3 wide. I make that a volume of some 21 and a bit CuMtrs. "
3M wide, 9ft 10 ins in old money!!! Are you sure?
Jim.