The dino and solstice are the only ones i consider accurate lol. TDU solstice has different interior and is a different model because they hired a better modeler maybe. The problem is how difficult the normals are to modify and it is not possible to make them look vanilla. I dont have the tools to add the textures like they are added on tdu cars for tdu. I tried it with the 350z at first but had to cancel the project until i found another source model.
The 350z tdu model also looks bad. I have also made a new rx8 and a Solstice GXP (Targa Coupe) Also nice you were able to save the meshes. Maybe some modder will make it in the future if the tools become available but then the modder will have to decide if he wants to make copies of already converted cars. Just some time because i currently also make a lot of other cars.