OVGTOPEN
actual wiki and tutorial soon tm
Car Selection Rules
Has to be a normal sized, 4 wheeled car. No Smart cars, no 18 wheelers etc.
Needs to be from at least the very late 80's, nothing earlier.
Working headlights and taillights.
GT style rear wing. Real life has a few exceptions to this rule.
Car choice has to look like it fits from the era it (would have) raced. Think of this like a more balanced BOSS GP but with GT cars. Don't ruin THE SPIRIT OF THE RACE.
Open top/convertible cars are accepted.
Silhouette cars (SCCA Trans-Am, BR Stock Car etc.) are a bit of a grey area.
Open wheel cars are not accepted.
If you really think your funny car should be included, show proofs it raced in real life with other more "usual" looking GT cars in the same class.
As always there's exceptions to everything so if you're still unsure just ask in the bread or dickcord where despite these rules you'll probably be told yes anyway.
Examples
Cars from these two games are fine assuming they have a GT wing.