OK so it was the generation before, thanks for the details
I've done the update:
https://www.imcdb.org/search.php?resultsStyle=asList&yearFrom=1986&yearTo=1990&makeMatch=- 2&make=chevrolet&modelMatch=1&model=caprice&modelInclModel=on&modelInclChassis=o- n&mk=&class8=8&origin=&madein=&madefor=&role=

I suppose that for these the "Classic" should go to extra info then?
https://www.imcdb.org/search.php?resultsStyle=asList&yearFrom=1986&yearTo=1990&makeMatch=- 2&make=chevrolet&modelMatch=1&model=caprice%20classic&modelInclModel=on&modelInclChassis=- on&mk=&origin=&madein=&madefor=&role=&page=1