Despite the onset of the latest high energy price era, it goes without saying that the car will remain the main mode of transportation in the United States as the 21st century progresses. First mass-produced on a national scale by Henry Ford, subsidized by the construction and expansion of the public interstate highway system after World War II, and immortalized by such films as George Lucas's American Graffiti (1973), the car and car culture is intrinsic to modern American life.

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