i think 2 door is quite rare...
this is what WIKIPEDIA has to say about your ride:
1986-1991
Tenth generation
Also called Oldsmobile Delta 88 (1986-88)
Oldsmobile Eighty Eight (1989)
Oldsmobile Eighty Eight Royale (1990-91)
Production 1986-1991
Assembly Flint, Michigan
Wentzville, Missouri
Ypsilanti, Michigan
Body style(s) 2-door coupe
4-door sedan
Layout FF layout
Platform H-body
Engine(s) 3.8 L Buick V6
Transmission(s) 440-T4/4T60 4-speed automatic
Wheelbase 110.8 in (2814 mm)
Length 196.3 in (4986 mm)
1986-88: 197.6 in (5019 mm)
1989 Brougham: 196.1 in (4981 mm)
Width 1990-91: 73.0 in (1854 mm)
1986-89: 72.4 in (1839 mm)
Height Eighty Eight Royale Coupe: 53.7 in (1364 mm)
Eighty Eight Royale Sedan: 54.5 in (1384 mm)
Eighty Eight Sedan: 54.6 in (1387 mm)
Eighty Eight Coupe: 53.9 in (1369 mm)
Delta 88 Coupe: 55.5 in (1410 mm)
Delta 88 Sedan: 54.7 in (1389 mm)
Related Buick LeSabre
Pontiac Bonneville
For 1986, the Delta 88 switched platforms from the GM B platform to the relatively smaller front-wheel drive H platform, with a wheelbase of only 110.8 inches (2,814 mm). The headlights changed from square sealed beam quads to integrated regular/high beam composite lamps in 1987.
In 1989, the "Delta" name was dropped, as was the hood ornament, leaving the model to simply become the "Eighty Eight," now spelled out instead of using the "88" in numerical form.
The Eighty Eight was given a mild facelift in 1990, eschewing the former chromed grille for a body-colored fascia with four slots and the Oldsmobile Rocket logo. In the rear, new taillights and backup lights extended across the body; once again, chrome trim was deleted.
1990-1991 Oldsmobile Eighty-Eight RoyaleThe model range during this time was the standard Eighty Eight, the Eighty Eight Royale, and the Eighty Eight Royale Brougham, in ascending order.
Engines:
1986-1988.5 - 3.8 L (231 in³) LG3 V6
1988.5-1991 - 3.8 L (231 in³) 3800 LN3 V6
Transmission:
1986-1988.5 - 440-T4 4-speed automatic overdrive
1988.5-1991 - 4T60 4-speed automatic overdrive
[edit] Voice Diagnostic System
This generation of Delta 88s had a voice diagnostic system that alerted the driver of problems. The voice was male and computer synthesized.
In the event of a warning, the door chime played three times rapidly and then played the voice alert. This happened twice in case the driver missed the warning the first time. Every alert also had corresponding light on the instrument cluster.
Warnings included:
"The engine coolant level is low!"
"The engine is overheating! Please stop the engine and consult the owner's manual!"
"The park brake is not fully released!"
"The key is in the ignition!" (Upon opening the door with the key inserted into the ignition.)
"The headlights are on!" (Upon turning off the car with the headlights on.)
http://en.wikipedia.org/wiki/Oldsmobile_Delta_88