the kit car is a DRB (australian) kit. the original gt40 mark 4's were a 427 ford with webers, no supercharger. that's the new ford gt. and they don't call it a gt40 because they no longer own the rights to the name and didn't want to pay the fee! more pictures are on the drb website. 1uz: lighter, much lighter than the huge 427, similiar hp (remember, that was 1966 and 400hp was a lot).
wes