A Pontiac Spoiler is an aerodynamic device mounted on a vehicle to undo or “spoil” unfavorable air movement across a body of a vehicle in motion. This results to an improved stability by decreasing drag which can cause unstable and unpredictable handling in a car at speed. Although they have become common to all types of vehicles, the spoiler actually started to be outfitted to race and performance sports cars. There are also spoiler that are added purely as decorative accessories with little or no aerodynamic capacities and unfortunately, sometimes they can even make aerodynamics worse.

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