I think people are being a bit harsh here. In simple terms a G40 is a GT with a charger on it. We all know some engine internals are different, but bar the chrager, a couple of rose joints, the vented disks & rear anti roll bar they are essentialy the same car.
see thats also the problem with me, im in between getting a new job so wouldnt know where to keep it, plus the slight money shortage at the moment, when you say the square back, do you mean the breadvan or the coupe? Im located in Derby