In all seriousness though, normal air may fluctuate a little more with temp changes outside and may leak a teensy bit more. So just check your tire pressures. On track pure nitrogen would expand less I assume making tire pressures and thus temps fluctuate less but I have yet to see anyone use nitrogen on track regularly.
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2011 Nissan 370z Black Cherry Sport Pkg - Daily Driver, , 1960 Morgan +4 fun car, 1986 BMW 325ES, 1998 M3 and 1996 Spec Miata - Race Cars
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