This is a completely stock car with the same-as-factory-provided (I5N-specific 275/35-21 Pirelli P Zero) tires. I ran this session in the limited power "endurance mode". You can see the impact of this mode most clearly in the back straight between Turns 11 and 12. Another 2:34 lap in the same session with the same settings is here: https://youtu.be/UAEiA4_gChU ; two faster back-to-back 2:31 laps in "sprint mode" are here: https://youtu.be/oa8BkFTditQ