The tires used on race cars and the tires on a typical street car are both round, affixed to wheels and inflated with air. Here’s a basic tutorial on the main distinctions between street tires and racing tires:. Racing tires run at much lower pressure – usually around 26 or 27 PSI – when hot. In racing tires, pressure increases around 8 to 12 PSI from cold to hot. When fully warmed up, the racing tire is much warmer than a street tire – usually somewhere between 220 and 240 degrees. “On your street car, the tires are more or less straight up and down unless it’s a high-end sports car.

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