@Renato Simioni The tyre wear on the F1 Ultimate is far too quick. We raced montreal last night and you were lucky to get 25laps on softs 15 on supers and 10 on ultra before the grip really went off badly. The degradation of the tyres should be halved. I actually wish it was possible on the server to put tyre wear and even fuel consumption to half or even a quarter as an option rather than just a multiplier increase.
Same here, had a 15 mins race this weekend with the default setup mainly and the rears were gone after like 8 laps ... I was on Supersofts.
Would also be helpful to know where the definitive drop off is, seeing as the physics files are encrypted.