If you want a nice drive comfort,performance all the bells and whistles,why not fit the body around the chassis you want,a friend of mine bought a rolled Audi rs4 and put mk2 Granada over it ,so left everything on inside etc underbonnet but drove like and rs4 with the looks of a classic granny,four wheel drive and 420hp ,just got to make sure the wheel base is very close and width and anything can be done,heated electric seats sat navy etc ahhh bisto ??