I just realized a constant change in sprint cars. The real old ones had the wind screen (if any) over to the left side of the hood - as if the driver would lean to the left in the turns. The next few decades had wind screens centered on the hood. Then, in the 60's, you started to see more cover towards the right side of the car - like Jerry Richert's high side #63 and even the "closed" cockpits of today. I wonder what the main reason is for the change. Is it the physical position of the driver? Is it how sideways the cars get in the turns?