Experienced this for the first time at a weekend BMW CCA event at Lightning NJMP.
Occurred day 1 in session 2 with 1/4 or less gas. Drivetrain error with low power mode. Pulled into pits with car running rough. After re-start, car ran fine. Same thing again this morning day 2, with same fuel level.
Looks certainly like a fuel starvation issue.
I think the M2 needs to start a session with at least half a tank to avoid this issue, considering the paltry mpg on track. This effectively means we only have like 3/4 of an already small gas tank, so like 10 gallons.
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