Never had any fuel starvation at Autocross and I have run it down to less than 10 miles left on the range. My friend's G35 started having fuel starve when he switched to racing slicks and another friend with a fully prepped WRX has an extra part that prevents fuels starve. Our stock M3 seems to just be better prepared for racing!
Track / Autocross setup: Forgestar F14 (21.8lbs & 23lbs)
Front: 275/35/18 Continental slick on 18x10, Rear: 305/35/18 RA-1 on 18x11
Drift Setup: Front: 275 Continental slicks, Rear: 255 Michelin PS2 street tire
Laguna Seca previous record - 1:49:498