Thanks boothy!
I did the first step. I downloaded the very nice skins (to "data\skins") and changed the AI names.
But it is not possible for me to change the setting, so that AI1 (now Alonso) has Ferrari skin, AI3 (now Hamilton) has McLaren skin, and so on.
In my single race, very AI has the same skin, in my case Ferrari-skin. What am I doing wrong?
thanks