In race times, Tokyo IS the longest, over 2 hours. Actually 2:45 if you want a close race with the AI Supras. But still 2:10 is about the fastest in an F1 car.
Mentally, Mistral (Cote D'Azur) is the longest. . Although only 1:40 in an F1 car.
*IMPORTANT* - Don't forget that there are TWO of them. 😈 156 Laps 😈 .
Physically, SSR11 is the longest. The most turns per lap. Demanding on thumbs, unless you have a wheel. Although only 1:30 for a close race.