while reading up on this months car and driver, i got bored and decided to read up on nissan's fx45 suv.
about 4 paragraphs into it they state that the fx is based on the fm chassis "which forms the basis for the 350z and the infinity g35.." hmmm... interesting. now the 7th paragraph they state that the fx45 is using the attesa e-ts 4 wheel drive system, which if your a nissan fanatic will note that this same system is used on skylines.... interesting? now we only need some parts for the engine!!!
franklinz

 

Id imagine things are a bit more cramped, but sure in theory you could take it from the GTR thats coming out too. but some custom fitting would have to be done. and that equals $$$$$$$$$.