Update on the custom spoiler car, source on the internet

How would a spoiler or wing work for my vehicle?
Spoilers are a matter of personal taste. Some people can live without them, others swear by their low-flying looks. There's no denying, though, a well-placed spoiler or wing makes your vehicle look considerably faster. There's a host of benefits to picking one of AutoAnything's spoilers or wings, including:

• Reduces Overall Wind Drag

A spoiler is a structure built into the body of car, usually on the back of the car behind the rear window, which is designed to reduce wind resistance by disrupting inefficient airflow. The faster a car drives, the more it must cut through the wind, and the more air resistance the car experiences.

• Wing-Shaped Spoiler

The term spoiler is commonly used interchangeably to describe an aerodynamic enhancement, which is a true spoiler, and a wing shaped extension, often seen on sports cars or race cars. The wing shaped extension functions differently from a standard spoiler.

• Decorative Spoiler

While the standard spoiler and wing spoiler are aimed at increasing driving efficiency, many car spoilers are installed as a matter of aesthetics. Many modern vehicles come with spoilers aimed at making the car look stylish or sporty while yielding little or quite likely negative wind drag efficiency.

• Instant sporty looks for any vehicle
• The choice between shapes and styles to fit your vehicle's looks
• Optional precision paint matching for spoilers
• Straightforward installation that's simple for the do-it-yourselfer

A quick reference to spoiler shapes and styles 

Many of these odd designs were actually homemade spoilers, and didn't come close to resembling a manufacturer part.

More modern factory-style spoilers sit much lower than these fast and furious homemade mods; some hardly rise above the trunk lid. The lower these spoilers sit, the less effect they tend to have on downforce and stability. Likewise, they don't create any extra drag. And, if they have a flat top deck, there's a good chance they have no effect on anything but appearance.

Factory-style spoilers

However, custom spoilers are available in a variety of different styles aimed at a more intense, aggressive approach. A custom spoiler can feature higher pedestals to rest on, a wider wing, or feature different curves and angles. It is all about showing off a more personalized, aerodynamic image other vehicles just don’t have.
Factory-style spoilers are designed to mimic the look of spoilers sold on sport models of your vehicle, which are made for accentuating curves and sporty looks. In many cases, they curve flush with the trunk lid for a near-seamless appearance. And, as a bonus, these spoilers are equipped with an extra taillight when the original factory spoiler of the same make employed a light.
Factory-style spoilers from AutoAnything boast a hand-crafted fiberglass construction for durability, smoothness and consistency with the manufacturer's original design. These spoilers can be ordered with a custom paint job that matches your vehicle's original color. The process involves expert application of multi-layer automotive-grade paint and the appropriate clear coat finishes.