In the United States, approximately 135 million cars travel every day on the streets, roads and interstates. The first automobile racetrack in America was the Indianapolis Motor Speedway, which had 3 million cobblestones. The monogram “”RR”” for Rolls-Royce has never been altered, except for when Sir Henry Royce passed away in 1933 and it was changed from red to black. Every year, 50 million automobiles are produced around the world.