you could phone a vaux dealer up ask them the height.
you could ask who ever you are buying it off to allow to measure it if you tell him/her WHY! you need this info.
measure it up with a tape measure from the floor and a thin board placed on roof to the top of the board i'd do this at the rear wheel arch where the shockers are in there unloaded state .
while your at it measure its length
wirecutterman, June 2011