Tyre wear does seem very scripted, I raced on online 50% race and due to a drive through penalty I decided to run longer between stops and try to gain the time back, all was going well until the final lap when the tyres went from ok to ZERO, no grip whatsoever, surely I would of seen a steady degrading instead of them falling of a cliff
Oh and getting a wheel makes all the difference, just upgraded from xbox wheel to fanatec csr, holy moly what a difference!