hmm.. what do I want in S3 (or even better yet, in S2 Final)
Advanced damage system: the deformation we have now in addition with parts that can break and fall off. Aditionally, leaks of any kind that also cause slippery roads would be appreciated.
Marbles: small rubber particles off the racing line which cause less grip. Ideally these would be generated dynamically, but I could live with prescripted ones.
Dirt on track: if you happen to have an of-road adventure, dirt should be dragged onto the track, which would also affect the grip there.
Dynamic weather. Best with a dynamically drying track.