Here is a system that our club ,MBRA, uses to ensure a full feature field every week. This system rewards sportsmanship and driving consistancy. This type of racing was developed back in the late 60's and was used at my hobby shop in the 80's for our NASCAR series where we ran 40 car races with entries from 5 states. Try it and see what you think, i'll present it with a 12 car feature.
Every car runs a qualifying lap or two, your choice .All races line up with the fastest car on the outside, no lane changes ! This will be a 100 lap race.
Each 100 lap segment is timed from start to finish and the laps for each car recorded
Low E.T. wins overall, each following car with 100 laps completed is recorded
The next group is by laps completed, in case of a tie I.E. 2nd & 4th heats 98 laps, are decided by overall time, this counts down to the last place car with the least amount of laps in the highest E.T. race.
SOUNDS DIFFICULT BUT IS VERY SIMPLE, NO MORE 4 CAR FEATURES SWITCHING LANES.