Oops, I did it again. :-D
Didn’t think I could beat my previous record. I surprised myself, here…

This game is a treat. :) Still had no issues with the game locking up or breaking or anything.
Okay, so I finally ended up breaking it.
The last couple rounds started with the car remaining stationary at the center of the track. Speed must have been quite literally off the charts. After round 6 or so the “on gate” bonuses stopped registering, and then the game seemed to lock on round 9. I think the loop-completed sound effect continued to play.
Used the “Formuler” car, and things started to become unhinged after picking up the coin bonus per loop.

Hope this info is useful as you (hopefully) continue to develop the expanded version. :-D