What are the implicit passing rules that drivers follow? I'm curious as I've never heard them specifically elaborated before. How 'legal' are they, in other words, what happens if they are broken?
For instance, if one car is half a length ahead than another into a turn, does the 2nd car HAVE to yield?
Also, is it true that cars can't make a 2nd blocking move... and what is the reason behind it. What makes Webber by reputation a difficult driver to pass?