I don't know for my dad or step dad, but my mom had a bunch of company cars which for some reason sometimes they were traded off with her brother (my uncle) This is what I remember:

1989 Chevy S10 (sold)
88-91 Mercury Topaz (donated)
1992 Ford Taurus (sold)
1995 Ford Taurus (donated)

The Topaz and the S10 were traded off every once in a while. We had the 95 Taurus and he had the 92 Taurus. Cars my mom had (don't remember all)

-1980's Toyota Corolla
-Chevy S10 manual wrecked after friend crashed it into a hydrnt.
-1965 Chevy truck
(that's all I remember)

The only cars I remember my dad having is his 1989 Toyota pickup that he has had since I was born, A Datsun, and a Valiant.

My step dad has a GMC Sierra 2500 currently.

He has had Some Toyota Trucks, Chevys, Volkswagen for his first car, and one Ford which he didn't like.