I do not see the point of a roll cage in a car with full a interior. Why do you need a roll cage in a road going RS Turbo? Look at the cars that have roll cages fitted. Im pretty sure they dont have carpets, std dashboard, a STD steering wheel.

I am not trying to diss you, only asking why do you want to put a roll cage in a road going full interior car? Ask Nuts RS to show you a pic of his escort and the rollcage and look at the difference between his car and yours.