- Spoilers provide several benefits besides adding a sporty look. They can increase handling by helping to keep the front end of the car pressed to the road. They also improve aerodynamics and in a few cases may even increase gas mileage.
- A car spoiler is like a fin that cuts through the air. As the car speed increases, this fin acts in several ways. First, it helps to even out the flow of air over the windshield and down the back of the car. This can increase gas mileage and improve high-speed performance. The pressure from this air flow can also effectively push down on the front end of the car, since pressure is being applied downward on the back end. This makes steering more responsive at high speeds.
- The most recognizable types of spoilers are fish tail spoilers, called "wings," and racing spoilers. A fish tale design fans out in two directions from the middle and is shaped like a whale's tail. The spoiler improves handling and produces better front-wheel traction. Racing spoilers are designed for speed. They are simple in design, which is to create less drag. Speed is the main focus, and giving a little bit of an edge in handling is secondary.
- Spoilers are created for different types of cars, because each make and model has different aerodynamics. That means the spoiler needs to be shaped in a certain way to improve handling. The spoilers also must be custom fit to the size of the car so they can be installed as an aftermarket part. Many sports cars, such as the Porsche and Audi, come with spoilers standard.
- Installing a spoiler is a job best suited for a professional. He knows exactly how to install the spoiler and has the necessary tools. The spoiler is usually fit to the trunk of the car, holes are drilled near the back of the trunk, and the spoiler is attached with hardware.
