rFactor2, racing offline: Is there a way to configure a different number of cars participating in the race, versus qualifying. Ie 1990's F1 qualifying where 35 cars were fighting over 24 grid-positions for the race?
Start the practice/qualifying sessions with all the cars you want. You can even add cars at the last minute. At the end of qualifying, before advancing to the next session, highlight the bottom entries and delete them one-by-one, then advance to the next session (warm-up or race).