Hello and welcome
@Toby wright. Nice getting to chat with you a bit last night after League.
We've got more than enough GT3 for you here and compete in all Endurance events oftentimes with multiple cars so you should be able to get your fix here for sure.
We've no real strict rule set when it comes to Endurance other than you try to show up to some Practices prior to the event as setups are always based off Team feedback.
Aside from that our general policy is Have Fun, try to protect the car and Have Fun while always remembering to Have Fun.
...but above all else, Have Fun,
but do try to protect the car while Having Fun.
Did I get my message across lol?