Actually, they have very similar chassis. The skyline chassis is stronger, but it has to be since its bigger, heavier, has a stronger drivetrain, and typically more power. R32 is very similar to S13, R33 similar to S14, etc. Now the GTR has similarities also, but also has a lot more strengthening.Originally Posted by Verik
Hell, I bolted a complete R33 rear subframe directly up to my RB26 S14.