I couldn't sleep, so finished my quest for the week. All 35 GR.3 cars with clean race bonus ending with a clean streak of 5.
The complete list of my best lap times:
8:25.852 SLS AMG (54% left for second lap)
8:26.160 Genesis (3% left, quick in corners, slow on the straights)
8:26.374 F-Type (drafting a V12 Vantage)
8:26.508 Lexus RC F '16 (3% left)
8:26.510 Mustang (out of fuel, understeer)
8:26.630 Mercedes AMG (3% left)
8:27.639 Alfa Romeo 4C (2% left)
8:27.879 McLaren BMW (1% left)
8:28.119 Beetle (1% left)
8:28.387 Porsche 911 (3% left)
8:28.522 BMW M3 '11
8:28.966 Lexus RC F '17 (7% left, saved too much)
8:29.450 Corvette
8:29.565 BMW Z4 (2% left, slow on the straights)
8:29.703 V12 Vantage (1% left)
8:29.919 Peugeot VGT (2% left)
8:29.983 Toyota FT-1
8:30.220 Toyota Supra (out of fuel)
8:30.313 Renault RS01 (2% left)
8:30.977 Citroen GT (1% left, needs more fuel)
8:31.016 Ford GT (2% left, early braking)
8:31.022 WRX (out of fuel)
8:31.434 Volkswagen GTI VGT (out of fuel, 47% for 2nd lap)
8:31.945 Atenza (5% left, just slow)
8:32.338 Lancer Evo (only 47% for 2nd lap)
8:33.610 Nissan GT-R (2% left, avoiding mess ups lap 2)
8:33.871 Audi R8 (too slidy to avoid chaos)
8:33.997 Dodge Viper (stable, needs more fuel)
8:34.418 BMW M6 Power (out of fuel)
8:35.203 BMW M6 Walkenhorst (out of fuel)
8:35.636 Peugeot RCZ (4% left, chaos lap 2)
8:35.906 Huracan (2% left)
8:36.790 Ferrari (3% left, bumped into wall in best lap)
8:38.678 NSX (2% left)
8:39.685 McLaren 650S (lots of fuel saving)
I can squeeze more out of the Lexus, I lifted to let an AMG through in the '16, and still had fuel left over. The AMG is quick as well. Most cars I've only driven once so plenty improvement to be had by doing a couple more laps in them.
The last 2 races weren't without controversy as the dirty driver showed back up, starting with his banter directed at me straight away. I did not respond so he shut up. Luckily he had improved his qualifying time so he started in front of me and took out the cars in front of him. Exact same thing he did to me, but this time I had a good look at his T1 strategy:
Interestingly, in my last race he started 2nd behind NZ*, who he apparently is friends with and he was clean that race. Well he got shortcut penalties then messed up and didn't block when I passed. He finished the race and left straight away. He can drive clean!
@Lion-Face Good luck, I've been listening/watching to your stream while typing this

I need to try the Ferrari again as well, got punted in that one so didn't really get to set any good lap time in it. Doubt I'll get anywhere near 8:19 though!