We have done some brief testing with the more modern LMP cars ..... 908 best fuel and fastest by a mile but handles like poop. R15 similar in fuel not as fast tho. both R18s poop fuel poop top speed handle like a dream tho. Rebellion remains untested to date.
Those are the ideal candidates in needed we look at older LMP and the Group C cars, I'm happy to leave it to you guys.
The rebellion would be a good P2 car at 960. I'm running 1:59's in it completely stock at COTA GP. It would also be a good P1 car with upgrades, same with the bentley.
totally stock 2014 Audi R18 and 2009 Peugeot 908 are 1:56's and 1:55's around COTA GP
Dunno if you would wanna include any of the open top Audi's like the R15++
Realistically they wont give us the porsche P1 car until a full porsche pack is out. so the only other P1 cars they could give us would be the toyota or the nissan