… I doubt that the sape of a car is copyrighted to the extent a lawsuit vs a game maker is possible.
That said, many companies are from all over the world and handle copyright differently.
If you take a page from GTA, the car is similar not identical, never named the same.
If you crated the models without using an actual schematic, their design belongs to you. Regardless of how close to something else it seems. You didn’t take their work, you took an end image and reproduced it.
If you take an antique, who’s designer has died, the rights of the design may never even be contested. Yes the company likely still owns the same rights, a share, or manage the design.
However, since it is a model in a 3d game and not a 1:1 replica in real life that you are selling, the companies usually have no issues to raise from a legal perspective.
You don’t impact their sales, you don’t steal their business.
As proof, I can offer this
Keep in mind you aren’t Activision. You likely lack the funds to even defend a case, so I’m not advising you do it on purpose and hope for the best.
especially when most companies will likely agree if asked…