Roger Penske was a car-loving, 14-year-old who regularly listened to the Indianapolis 500 on the radio when his father landed tickets to the 1951 race. They made the trek from Cleveland, and when Penske saw the cars zipping around Indianapolis Motor Speedway at 200 mph he fell instantly in love. Now he owns the iconic speedway, its hallowed grounds, “The Greatest Spectacle in Racing,” the…