There are unused stat types for "Material" and "Suspension". (Suspension parts in-game just reuse Aero stats.)
Wondered why DRS seems so overpowered? Well, a rear wing with maximised DRS Delta stat will apply a 4.4% top speed increase and a *65%* acceleration increase to your car while DRS is active.
There's also sound data for changing the game speed to 32x and 64x, likely removed because the game already has issues when switching from 16x -> 1x.
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