Hello Glen,
thanks for the quick reply.
I've tried to as you asked me, but still doesn't work... I suppose there is a texture problem... I tell you: in the original mod 2017 there are only 3 types of tyres: Extra Soft, Super Soft, Soft. Since I also need medium and hard tyres, I've extracted them from 2016 Mod and I've copied in cars.wad 2017. The 2017 tyres are bigger than 2016, I think the problem is here.. I don't know. I also tried to update the lod file with GpBuilder but I I do not understand how it works.
Thanks.
Alex