online only accumulates mileage if you race a race and finish it. if you just cruise around online it will not rack up. i found that out a long time ago and was like wtf!
Ah, so cruising around the ring on "track days" does not count... Alright, good to know. 👍
Edit: 100.0 km on the McLaren Mp4. Pretty cool, on the instrument panel you can see both total distance and trip distance. For instance, after my last race it said 100.0 km total and 14 km for that particular race. It also seems to have a clock, it showed 12:00 on Nurburgring and 09:05 at Mount Aso. Have to check if it changes with the daylight transition, cause that would be cool