Aerodynamics are parts that you can buy to make your car perform better.  They also make your car look better.  Some of the parts are spoilers, bumpers, and side skirts.  They come in any color you want.

This is a front bumper on a Nissan 300ZX Twin Turbo.

This is a huge spoiler on a Mazda RX-7.

This is a front bumper on a Toyota Supra.

In this picture there is a front bumper on a Nissan Skyline GT-R.

In this picture there is a carbon fiber spoiler on a C-West Nissan Silvia.

In this picture there is a nice front bumper on a C-West Honda Civic.