coupes are lighter. hatches more space (no rear deck just all one big open space)

89-90 SOHC 140hp/155? tq
91-93 DOHC 155hp/160tq
94 was all convertibles and all 'verts are automatic (unless swapped)

hatch rust is easy to fix as i said in another thread.

easy mods are Mass Air Flow adapter with a cone filter, removing the clutch fan from the water pump pulley and getting electric fans or wiring the electric fan to run switched or constant, exhaust is decent too but for daily u dont need loud.

the MAF is actually supposed to be at least 6" (or was it 8") from the throttle body i believe or it wont read right.

you can also disable the EGR system and the SCV (secondary butterfly valves in the intake (sounds like vtec sometimes).