Without sticking my nose too far into this conversation
it may have more to do with the history of how the vehicle has been treated/driven, where it has been stored and what roads it travelled along with changes/modifications including power, rim & tire size/car height.
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Although I'd have to agree with Sonic and the saying "they don't build em like they used to"
I currently have an 89 GTSt (stock), 92GTR (built) and 2001 GTT (mild). So not a fair comparison due to models but
I have found The GTT is tinnier, interior is cheaper/tackier, steering, suspension components and mounts have worn out a lot faster, rubbers, seals and paintwork is worse for wear than the earlier models.