susp. 95, more torque 96+, newer 96+
all manner of electronic nannies that lower your insurance 96+, can swap a 96+ to obd1 but some states frown on that. 95 one O2 sensor.
Everything else is subjective, like 4-2door, buttons on steering wheel, OBC.
realoem can show you some of the suspension differences.
My 95 interior is suffering in Tucson heat. The e30 and e46 are far more robust as far as interior go._______
GC RTAB shims, RSMs, T/S Coilover with Koni DA f/SA R & 450#f/550#r Eibach ERS
Eyeball Arm CA mounts
Sunbelt CAMS w chip for 24# injectors, Euro MAF, Conforti/ITG CAI
96+ exhaust manifolds
Euro fLoAtErS, Ferodo DS2500
M roadster lever
All done in my garage