I have owned a r33 gts25t sedan and now a coupe.
the sedan is something like 50 kg's heavier.
You cant notice a difference between the two mod for mod.. and if u can u may just well have ur hand on it .. I am speaking for r33 gts25t's only..
If its an r33 ur after, dont for one second think the sedan wont perform..... all performance part are interchanable ie suspension, all motor, zorst etc..