Spoilers are supposed to change ... car reduces drag even though it sticks up and blocks the air. Similarly, aerodynamic testing has found that pickup trucks have less drag with the liftgate ...

At first glance, the overall design is the main difference between a spoiler and a rear wing. While a rear wing ... lift is achieved by breaking up the air flowing from other parts of the car ...

As the wind hits the surface and goes up, the spoiler pushes down on the car; this is Newton's third law of motion. The faster the car goes, the more noticeable the effects of a rear spoiler will be.

For the first time, the Kia EV9 GT was caught with an active spoiler, giving us a sneak peek ... the EV9 GT can quickly pick up speed despite weighing over 5,000 lbs. Kia also equipped it with ...