Ken, unfortunatly this is not allowed anymore. The private cars are part of the season preparation. Easch driver can purpose his cars, we do some "validation races" to check that the car is OK for everybody and after that the car is included in the GameData. By including the cars one by one, we offen got mismatches. That's why we do this before and why we do the "car validation races"
So when the season starts, we do not add new cars anymore. We had a piece of software to easily update car during the season, but one or two drivers didn't bring the software to work (probably do to windows Vista software issues). So we decided last year that we will not use this anymore. But I'm still working on that point to find a solution.
Anyway, maybe we will have a Car patch (and validaiton races) during the season break. So hold on
