So correct me if im wrong here, but the calculation for the performance rating you see at each spawn appears to be these handling lines in handling.meta
InitialDriveMaxFlatVel / ( fInitialDragCoeff * fInitialDriveForce)
so for this BMW M4 im testing out in game, I get a performance rating of 69.6 or something when fully tuned.
InitialDriveMaxFlatVel = 218
fInitialDragCoeff = 9.5
fInitialDriveForce = 0.33
using the above calculation gives me about 69.537, basically 69.6
-edit, this isnt right. Would like to know what the actual calculation is.