Guys!! My suggestion:
The decreasing tyres system must be changed by the engine that player choose n car improvement when filling the points ! I mean like Motogp for Example Ducati run faster because its v engine so the tyre should be decreased more than inline so the player should be change the push system into low Throttle ! If so many acceleration filled the tyre should be decrease faster too this would be great n make the race fantastic more interesting ! But u have to increase the supersoft durability into 10% ! Sounds the race will more difficult but the race would be so interseting n fun if u change the system like this!!