Rectified an issue with the diffusers of all cars
Resized and repositioned the rear diffusers of Step 3.
Reverted the engine of Step 3 to v1.9 spec and KERS output to 60kW discharged in 6.6s.
(Apologies in advance for doing this, but I felt that this was better for Step 3)
Changed the default setups of all cars; setup by @Albi-M
Changed the LUTs used by the wings of Step 3 to those used by Step 1
Fixed the AI of the cars
New inertia box for Step 0, Step 1 and Step 3.
Reverted Step 1 aero.ini to v1.8 spec.
I have reworked the entire mod. It now has four variants in it; Slicks, S0, S1 and S3.