It’s drafting basically. The car in front breaks the air and reduces drag on the car behind it. That’s why you see a car shoot up like its going to rear end the car in front and swerve out at the last second. They pretty quickly lose the advantage once they are back in air again. Same reason all the NASCAR guys are riding each others bumper and a group of them can pass the car in front. They can’t do this in corners since the car needs air over the wings to create downforce on the wings.
Latest Answers