Why do some sports cars have moving spoilers?

Question

So when you play games (say Forza Horizon) and you see the more high end sports cars have spoilers that move up and down when it comes to high speeds and breaking instead of being static. Why do some cars do this? What’s the benefit to the engineering behind it?

In: Engineering

Answer 1

Non-moving spoilers can screwup the aerodynamics (you want the surface as smooth as possible). So you want them deployed only when certain amount of downforce is necessary