learn your history man, it's as simple as knowing the Supra name was completely separated from the Celica name in ***1986.5.*** So Toyota would have to knock off two generations to get to the conclusion you're getting it. It makes no sense either way
(p.s. my 1985 CELICA SUPRA even says so on the title as well as b-pillar and nose badge.)
PLEASE LEARN BEFORE YOU TYPE