The following statement is made from an entirely from my experience with growing up around racing, experience in competition racing as a driver, working for a world class racing school teaching these concepts, countless track days, and from my observations based on the short video.
- The BMW may or may not have seen the Porsche.
- As the overtaking car, you must assume the other car has not seen you.
- The racing line was from right to left so the Porsche should have expected the move left.
- It is the repsonsibility of the overtaking car to execute a safe pass.
- If you are being overtaken be predictable. Follow the racing line.
- The BMW would not even be guilty of blocking. It was a single movement and followed the racing line.
- The single most important thing, when in doubt, do NOT try to pass someone. This is not a race. Be patient.
I would assign 100% of the blame to the Porsche. They were the overtaking car and they tried to pass at the apex.
Sure, the BMW could have stayed right but as harsh as this sounds, it was not their responsibility. They can tool along on the racing line and at most, they can be stopped by the Ring marshals.
Please remember, not everyone is as good a driver as you are. Even if you are running in an "experienced" run group. I have seen stupid shit at every level.
My final thought is, if you are participting in a track day and there is a slower car in front of you, you have a few choices.
- Wait for the point-by.
- Do a drivethrough of the pits to put space between you and the other car
- Wait till they see you and then give you the point-by
- Make an ill advised pass.
In every track day I have been part of, you would be in more trouble than the slower car. They would be reminded of paying attention, and you would be reminded of the passing rules and maybe even be sent home.