This is a Scalecraft truck (I think an M45 from the US army), not too sure about the scale. The toy was originally motorized as a sidewinder, but the motor and gears were damaged, this is one of my very early efforts (done about 1992). I cut an open pan Ferrari F1 in half and simply glued it in place, once painted, it looks OK.You could use any other open pan F1, I still have not bothered to find a driver for it though, by the way, yes the doors do open.