3D Dynamic: The racing line rises and lowers according to the speed of the car and its position on the track. The line goes red when you need to brake heavily, orange when you should start braking and green when you can fully accelerate.

2D Dynamic:  The racing line doesn't raise but it reacts and changes colours dependent on the speed of the car as the 3D line does.

2D: The racing line does not raise or change colour. It only displays the best trajectory to follow.

None: The racing line doesn't appear on the screen.