[Solved]strange tires effect need help

Hi, i'm lost with this problem.
It comes form one track (hermanos) of 1988 from carrera that i edit.

You can see the tires are not felecting the same.
In the second shot, they look bad and it's like an emissive light come from the ground.
Any idea?
I've checked all i knew but don't find the problem.
Thanks for the help

 

Are you chasing the Cars with another Car and Headlights on?
Here is a Screenshot of it (V 0.941) and it looks normal here.
Have you modified something already?
Which Daytime is it on your Screenshot?

 

Not a car lights problem, i'm with a f1 lol
For the changes, i made some gdb modif with the textures as you can see but it's the only track that give this effect.
Maybe the date of the event, in 1986, it was late on october.
I'll give a try.

 

Maybe some parts of the car aren't self shadowing? Or perhaps old shader?

 

I've found the problem,
Something about the shader in my scn file.
I don't know witch one, i started from scratch with older scn and now it's working.
Thanks for your help guys