Gas milages for the corvette C7.R

I race a league that does 50 laps at Sebring Full,Long bleach full,COTA GP, Lime Rock full,Catalunya GP,Nurburgring GP,Watkins Glen Full Alt,La guna Seca,Circuit de Spa-Francorchamps,Road America,Le Mans Circuit de la Sarth and was wondering if anyone knew the gas milages for the C7.R on any if not all of these tracks, I just want to know how long the car will last without pitting, mostly just want milages for Sebring Full,Long bleach full,COTA GP, Lime Rock full,Catalunya GP,Nurburgring GP,Watkins Glen Full Alt,La guns Seca. If anyone knows these that would be a huge help. Even better would be if anyone has figured out the size of the gas tank itself.

From the extensive testing I’ve done at TORA, if the C7.R is at stock power (824-832 PI range with brakes depending on your tire choice), it lasts just over 30 minutes on fuel, so you can account for that time based on the length of a lap and round down to the nearest whole lap from there. It’s usually 12-15 laps depending on the track from what I’ve seen. While Forza gives every car 20.0 liters of fuel on a full tank (no idea why, but that’s what the game does…), the C7.R is one of the more fuel efficient GT cars, along with the Viper and Z4. The worst two are the 458 and R8, but those usually fall about a lap short of the others at most on a fuel run.

I saw you’re doing a GT series though! I might be interested depending on my availability.