Just thought I would point out at 1:35 on the happy hour video, you can hear the rev limiter on the 7 car. As I commented on the video link, the primary ignition box might be chipped a bit low to help with fuel mileage, or possibly to keep that Toyota engine from letting go like the #36 and #47.

Just thought I would point it out. Just an interesting detail to consider. Good to see the car was competitive today.