NASCAR cars use windshield wipers
primarily as aerodynamic devices. The teams behind each car at NASCAR engineered windshield wipers to have a new purpose. By leaving the wipers in an upright vertical position, as opposed to resting them at the base of the windshield the way you might in your car, the wipers help direct airflow over the car’s body.
It’s said that this helps a NASCAR car go a little faster. If you take a careful look during the next NASCAR race, you’ll notice that many drivers have their wipers parked upright.
NASCAR windshield wipers are larger than your average ones—1.5 inches wide and 2.5 inches high.
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