Apparently, track length is measured 15 feet from the wall.
Listed track length is 2.66 miles.
Need to figure out track radius in terms of a circle.
C=2piR
2.66 miles = 2piR, solve for radius
R=.4261 miles, or 2235 feet
Talladega track width is 48 feet. To account for the 15 feet from the wall...