Catch-up mode

Is there a mod or mode where if a lead vehicle pulls ahead too far in a race, the following vehicles are respawned near the leader? I want to play Flood Escape Crater with family when they are here (which is rare) and not have to constantly restart the level or have to pause the rising water as long as long as at least one vehicle is still running.

If a mod does not exist, I may try creating something myself. Ideally, a script would have some idea where a track/path is so a distance calculation between the leader and following cars could be performed (unless there's a running 'distance traveled' statistic or something). My goal will be to keep the vehicles relatively close to one another since I also want to the water rising speed to be pretty aggressive. I suppose another way could be to spawn broken vehicles a certain distance above the water.