hmmmm...... nope, different engines. GTR RB26DETT, GTST RB20DET, are the common ones but there is about 5 or 6 different engines that the 32 came out with, of which a couple of them i never seen or heard of anyone having one.
and yes GTR = 4WD, GTST = RWD or a 4WD (in the GTS4 models)
i think you may need to find out a bit more about whats actually in it.