[flyinMKIV]

The two are completely different. The transmissions are not the same the turbo models came in a 4 spd auto or a 6 spd manual. the n/a came in a 4 spd auto (different internals) and a 5 spd manual. Leather is an option for both cars. The suspension is not really and different, just a little bit stiffer in the turbo models. The engines are almost the same, with a few differences on the turbos. The maifolds are completely different when it comes to routing of the pipes. The brakes are bigger on the turbos as well as the rotors, wheel, and tire sizes. If you have any other questions, go to MKIV.com They can answer just about any question you have and if they can't, I can try.