different year Seat belts types

Im assuming this car is like other hondas of the time period where
the 88 and some models of the 89 have pillar mounted seat belts and 89-91 have door mounted?
am i correct at assuming this?
the 88 and some models of the 89 have pillar mounted seat belts and 89-91 have door mounted?
am i correct at assuming this?
Comments
Moved...
'88=Optional Mugen race belts(
88-89=pillar belts
90-91=motorized belts.
ok. but ALL 89s have pillar mounted?