Real, it's like a motorcycle.
If you fit a good windscreen, it works like KEVFITZ told.
A well cutted screen in the correct angle links the wind/air over your head but don't let you miss the feeling.
For an example for all HARLEYs you can cut the height to your own taste.
I do it on a DynaGlide with a small "sport screen". It's great and works like KEVFITZ told. I can understand him.
On the other side in a car you sit in, on a bike, you sit on it. It is a difference when you hit the screen in cause of an accident. To be hurt in car is another risk than on a bike.
Enjoy your modification!
Greets René