Water would sizzle on the wheels when spraying the tires and sidewalls to cool them down between sessions. My 2019 stays much cooler with the VAQ, deflectors, and no shields. Like a ton cooler under same conditions.Very true. Plastic hub rings should never be used on track. I have burned myself on wheels checking pressures many, many times. The amount of heat the rotors can carry is insane. 1400*F is no joke!! However, if you bring that down by 200*, the difference is pretty huge.