# Does a driver's weight affect the speed of racing cars?

Since it is harder to move heavier objects than lighter objects, the weight of the driver is factored into the total weight of the car and therefore influences the speed of the car. However, this influence may be essentially negligible.

According to an article on NASCAR's website, a lighter weight advantage may be negligible on certain courses, including the Daytona course. Driver weight has become a topic of conversation since Danica Patrick's success in the car racing circuit. For drivers under 180 pounds, weight must be added to the car to make the weight of the car plus driver equal 3,330 pounds. However, weight tends to matter most during acceleration, not when the car is at full speed.

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Q&A Related to "Does a driver's weight affect the speed of racing..."
 Vehicle weight is listed as curb weight and gross vehicle weight rating (GVWR) Curb weight identifies the actual weight of the vehicle without passengers. GVWR identifies the weight http://www.ehow.com/facts_6001325_weight-affect-sp...
 the fatter you are, the less speed your car will max out at, but, the more weight, the more momentum. http://wiki.answers.com/Q/How_does_the_size_of_the...
 the heavier a car is the more power required to get it up to speed the weight is not as important as the power to weight ratio. http://answers.yahoo.com/question/index?qid=200905...
 Same as with all racing - weight can be a huge issue! In the case you're giving... most rental karts probably weigh in the 200-250# range, and have somewhere in the 7-10hp range. http://uk.answers.yahoo.com/question/index?qid=201...
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