Maximum allowed tire width in the class is 255 and only one aerodynamic element is allowed per end. So, either a diffuser, wing, or ducktail. Too bad they don’t allow heavier cars to have wider tires. Also wondering if there is a better 220TW tire than the 300TW PS4S (which make some compromises for comfort and efficiency). I see that the winning time for the RWD class was 1:56.2 so I wouldn’t count on 1:59 holding up as the fastest time at this event in the future. The record AWD time is only 1 second slower than RWD (I guess that was with the old tire rules).