That's the same type of thing I was thinking, Dygear. But I would even go a few steps further. Some race series require the engine to be turned off during fueling. Some series use green lights, others use the turning off of the red lights. Some series require mandatory pits, others do not. It would be nice if all of these options were on one screen (for graphical hosts) or in a config file (for dedi hosts). That would allow server admins to set race conditions to mimic most any real world series.
What I envision for the future of LFS is four "sections" that control all aspects of the server:
1) Car selection (which cars are allowed)
2) Track selection (which track is being used, and in which direction)
3) Weather conditions (air temp, track temp, wind, time of day, etc)
4) Race regulations (standing start or rolling start, how the start lights operate, whether pit is required, what must be done during pit stops and in what order, pit window, etc).
Obviously, these options would all be totally different depending on whether you're trying to simulate F1, NASCAR, BTCC, etc. as they all have different regulations.