Statistics from the National Highway Traffic Safety Administration that were publicized in "Auto Industry Update: 2006," a presentation by Farmington Hills, Mich., research company CSM Worldwide, show only 65% of the content of a Ford Mustang comes from the U.S. or Canada. Ford Motor Co. buys the rest of the Mustang's parts abroad. By contrast, the Sienna, sold by Japan's Toyota Motor Corp., is assembled in Indiana with 90% local components.

Next year, the staid Toyota Camry will undergo the ultimate rite of passage by entering the most prestigious circuits of the National Association of Stock Car Racing. Toyota President Katsuaki Watanabe said his company's vast network of dealerships saw the Nascar link as a crucial marketing tactic to raise Toyota's profile in the U.S. heartland. "Our dealers told us it was really important to do this," he says.