if you like the r32 gtr thats in ur garage but ur bored with it, the rb26 has very long lists of parts available aftermarket that can be used to make the car faster ect. if you got a sweet car already why not modify it and improve on it
thats obviously why in japan 33 gtrs and 34 gtrs are popularly raced in n1 racing series, or at drag racing meets there are plenty of the later model gtrs sitting there ready to stop the clocks at impressive times....
or why the r34 is known to have held the lap record on the nurburgring (sp?) something porsche didnt like at all....
whilst i agree that the 32 gtr was designed for the track and is an awesome car, i dont think you can say the later gtrs are riding along on the 32 gtrs improvement.
with each revision came better technology, the attessa 4wd systems for example, in the later gtrs run faster and process information faster making them inherently a better system
there might have been a r32 godzilla but there has also been 400R, nur spec ect
tho i may be misinformed, forgive me, i just own a gts