[brsteg]

I just want to make a position clear, if you are talking about a locked down track then IMO the rules change.
It's still chicken to drive in from 4 car lengths back and wipe someone out.
But if they let you get close enough to their bumper to just go in a little deep; then contact to the bumper that moves a guy out of the rubber is fair game.
Line is crossed when you go in so deep you cant make the corner either.

Yes, split second decisions and those cars are hard to drive... But these guys are the best so I expect the best hard fought but fair racing.

(Some folks don't think fair is a thing)