Great looking livery.
On a side note, how did you paint the wheels? I've been making liveries for a while and I have GT3 templates but I can never figure out how to paint the wheels. Even when the template includes a wheel file, I'm not sure how to link that to the car.
For that BMW M6 GT3 you should name your textures not just XXXXXXXRims.dds. You should create XXXXXXXRims00.dds and XXXXXXXRims01.dds and then everything will be fine :)