suggestion is to make this camera stick exactly to the car, so the targeted car is always on screen. now in a lot of shots camera doesn't keep up with the car, especially if car moves fast or passes camera very close - in these cases it's only rear of the car gets on screen or sometimes car is not even on a screen. it makes very unpleasant to watch when a lot of times car is not on screen or only rear of it on screen, or capturing a video, where you have to find perfect shots replaying same moment several times. for example here is two videos to compare. first - beam. in some camera shots car disappears for almost full second, and in others front of the car disappears. second video - gran turismo. car is always on screen, even when it passes camera very fast.
