The drag coefficient of a car is a measure of how much drag it experiences as it moves through the air. It is a dimensionless number, and the lower the drag coefficient, the less drag the car experiences.
The drag coefficient of a car is affected by a number of factors, including the shape of the car, the size of the car, and the surface roughness of the car. The 2010 Audi R8 has a low drag coefficient because it is a sleek, streamlined car with a smooth surface.
The drag coefficient of a car is important because it affects the car's fuel efficiency and performance. A lower drag coefficient means that the car experiences less drag, which means that it can move more efficiently through the air. This can lead to improved fuel efficiency and performance.
