Some background vehicle models and/or designs from Cars 1 kind of remind me of existing BeamNG models.

Pickups (ex: Duff Wrecks); Gavril D-Series (of course)

SUVs (ex; Nelson Blindspot); Gavril Roamer (also of course)

Since the first two are all based on, or depicted as a body-on-frame, full-size-style design.

Minivans (ex: Mini and Van); Soliad Lansdale

Modern sedans (ex: Race Official Tom); Probably Ibishu Pessima (1996-00 second gen)

Classic sedans (ex: Chuck Manifold); Ibishu Pessima (1987-91 first gen)

1959 Fiat 500 (ex: especially Luigi); Autobello Piccolina (if only the creators reused this a lot in the first film)

Semi haulers (all in the film); Gavril T-Series (again also of course, either or both old/new, and the cabovers in the film match up too since Peterbilt is one, and the T-Series came in such version)

1951 Hudson Hornet, 1949 Mercury Coupe, and many other late 40s/early 50s cars in the "Our Town" song flashback; Burnside Special (if only it had an official vanilla two-door coupe version or 4-door versions of the cars in that scene). Only vice versa exists.