Spitballing ideas for next season:
Ban the R8 - Agree. Unless it can be reasonably balanced with ballast, but that is not enforceable with the room settings, and would work on the honour system. I like everyone I race with here, but there is no way to check that ballast is there, unlike using the HP limit.
Driving line off - Agree. Encourages drivers to be more cautious and be looking out for traffic instead of waiting for a red braking indicator.
Restrict tyres - Disagree. Different pitstop strategies are more fun.
Heavy damage on - Disagree. It seems like a good idea, a very good idea for endurance racing. But you'll hate it. People will flip out in-race, in the thread, they'll murder their kids after being taken out of contention lapping a car

Stewards' workload will be too high. In a 1.5 hour race, the penalty for having to pit to fix damage is too big. Maybe in a much longer event it would work.
Multiple classes in same event - Disagree. I think 10 or 8 cars in the leading class is not exciting enough, to be honest. No need to dilute the field. Maybe a separate B-series that runs on a different day with GT cars, run by a different person? Only needed if there is a ton of interest beyond 16 drivers and reserves.
Special event settings for the race at Circuit de la Sarthe - It's Le Mans, it's the title race of the series...would it be interesting to make it a longer event? 2 hours instead of 1.5? 2.5 hours? Why was that pitstop so long? Was it a driver change or a piss break?
New procedure for reporting racing incidents - To save Bermuda/the steward a lot of time, a driver could have the option of reporting a maximum of two racing incidents per race, via PM only, with lap number and (if they remember) the other car involved. The responsibility for filing a report goes to the driver so the steward doesn't have to watch the entire replay over and over.