Whatever your goal or whatever the benefits, if some 3D mesh has been illegitimately acquired, it's been illegitimately acquired. If these really are just adaptations of pre-existing mods that you use with permission, then I can understand why the mesh is similar.
I do have to commend you, that in just a few years, you're able to produce professional level physical models for racecars, to such a high level that it exceeds every single professionally developed GT-car package publicly available currently, that are so good that race teams use them for testing. And you offer some of it for free too, for us plebs.
I must be a complete hack, because I've studied these things for nearly a decade now and read dozens of serious books and papers on the subject, not to mention talked to a bunch of engineers, drivers and work's people in general and perhaps now I'm getting close to achieving over 90% accuracy in such types of cars. I could never do it with just a few years of experience.
I was really good at maths and physics at school, and maybe just found my really old calling, I cannot tell you how or why, something just clicked with this.
What I did find is no matter what the "factory" and "Books" told you, this was never used on track, but thank you for your seriously kind words.
I do what I do, as I explained why above. We have never created anything from scratch, this has been clear from day one, but we have always had permission
Shaun