Toe-in measurements

Toe in is measured relative to the tire diameter. If you choose to measure toe in with long rods, like they do on the track at NASCAR, you would have to adjust the difference based on the length of the rod. So 1/16 difference between the front of the tire and the rear of the tire would be more like 3/8 (wild guess) of an inch if you took measurements three feet to either side of the tire. Rod