Pretty sure that this is not a mass-change though

Pretty sure these two are German, not American
https://www.imcdb.org/vehicle_893143-Volkswagen-1200-Typ-1-1973.html
https://www.imcdb.org/vehicle_709331-Volkswagen-Super-Beetle-Typ-1-1973.html
https://www.imcdb.org/vehicle_1136654-Volkswagen-Jetta-Typ-1H-1993.html

Done

For All 1994 Daewoo Arcadia Model Code [WA19] added Please
https://www.imcdb.org/search.php?resultsStyle=asList&sortBy=0&make=Daewoo&model=- Arcadia

For All Hyundai Scoupe Model Code [SLC] added Please
https://www.imcdb.org/search.php?resultsStyle=asList&sortBy=0&make=Hyundai&model=- Scoupe

Done

Made for AUS:

https://www.imcdb.org/vehicle_112146-Subaru-L-Series-AM.html
https://www.imcdb.org/vehicle_1961075-Subaru-L-Series-AN.html
https://www.imcdb.org/vehicle_672665-Subaru-L-Series-AM-1982.html
https://www.imcdb.org/vehicle_654299-Subaru-L-Series-AM-1983.html
https://www.imcdb.org/vehicle_702846-Subaru-L-Series-AM-1983.html
https://www.imcdb.org/vehicle_870418-Subaru-L-Series-AM-1983.html
https://www.imcdb.org/vehicle_702684-Subaru-L-Series-AN-1985.html
https://www.imcdb.org/vehicle_668155-Subaru-L-Series-AN-1987.html
https://www.imcdb.org/vehicle_664596-Subaru-L-Series-AN-1988.html
https://www.imcdb.org/vehicle_99487-Subaru-L-Series-AN-1989.html
https://www.imcdb.org/vehicle_471709-Subaru-L-Series-AN-1989.html (1987+)
https://www.imcdb.org/vehicle_680923-Subaru-L-Series-AN-1989.html (1987+)
https://www.imcdb.org/vehicle_741605-Subaru-L-Series-AN-1989.html

You can.

We decided a while back that for models that offered two coupe options, one being a traditional 2-door and one being a 3-door, that the 3-doors should be listed as "Hatchback" class to separate them. This was for Mustangs, Celicas, Corollas, Nissan SX, to name a few.

So I also add "Liftback" to these, like the previous list?

Hatchback, not coupe:

https://www.imcdb.org/vehicle_857775-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_789690-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_1191840-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_1153454-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_1451409-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_1426274-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_1453597-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_1735042-Toyota-Celica-RA64-1982.html
https://www.imcdb.org/vehicle_696038-Toyota-Celica-A60-1984.html
https://www.imcdb.org/vehicle_428549-Toyota-Celica-RA63-1984.html
https://www.imcdb.org/vehicle_791987-Toyota-Celica-RA64-1984.html
https://www.imcdb.org/vehicle_1140511-Toyota-Celica-RA64-1984.html
https://www.imcdb.org/vehicle_1247625-Toyota-Celica-RA64-1984.html
https://www.imcdb.org/vehicle_844349-Toyota-Celica-RA64-1984.html
https://www.imcdb.org/vehicle_1362864-Toyota-Celica-RA65-1984.html
https://www.imcdb.org/vehicle_1561922-Toyota-Celica-ST202-1998.html
https://www.imcdb.org/vehicle_948794-Toyota-Celica-T200-1995.html
https://www.imcdb.org/vehicle_905772-Toyota-Celica-T160-1985.html
https://www.imcdb.org/vehicle_621591-Toyota-Celica-T160-1986.html
https://www.imcdb.org/vehicle_792855-Toyota-Celica-T160-1986.html
https://www.imcdb.org/vehicle_1440710-Toyota-Celica-T160-1986.html
https://www.imcdb.org/vehicle_188070-Toyota-Celica-ST162-1988.html
https://www.imcdb.org/vehicle_1640495-Toyota-Celica-ST162-1988.html
https://www.imcdb.org/vehicle_481315-Toyota-Celica-T160-1988.html
https://www.imcdb.org/vehicle_645923-Toyota-Celica-1989.html
https://www.imcdb.org/vehicle_1073088-Toyota-Celica-T160-1985.html (1986+)
https://www.imcdb.org/vehicle_695288-Toyota-Celica-1989.html (1990+)
https://www.imcdb.org/vehicle_662217-Toyota-Celica-ST184-1990.html
https://www.imcdb.org/vehicle_239920-Toyota-Celica-T180-1990.html
https://www.imcdb.org/vehicle_1776800-Toyota-Celica-T180-1990.html
https://www.imcdb.org/vehicle_1576381-Toyota-Celica-T160-1985.html
https://www.imcdb.org/vehicle_792855-Toyota-Celica-T160-1986.html

Done