Open the car into Zmodeler and check if:
- The textures are correctly assigned to the car and not flipped.
- the names of textures assigned are good (the same than for the tex files without the hi_ prefix) ... Exemple for texture 1: hi_williams1.tex into the material slot, name must be: williams1.tga
- the whole mapping for each texture is into the square (and not outside it), in UVMapping view...
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