A model climbs out of an Audi during the New York International Auto Show. Don Emmert /AFP/Getty Images hide caption

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An auto detailer polishes the new 2012 Volkswagen Beetle on the floor of the New York International Auto Show. Spencer Platt/Getty Images hide caption

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A security guard stands near the Toyota exhibit at the 2011 New York International Auto Show on Thursday. Mary Altaffer/AP hide caption

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Protesters gather at the Ohio Statehouse on April 9 to help launch the campaign to get a referendum on Ohio's Senate Bill 5, which curtails public workers' collective bargaining rights. Jay LaPrete/AP hide caption

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Michigan Gov. Rick Snyder signed a bill that will cut the amount of time a worker can get unemployment. Cliff Owen/AP hide caption

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The Chevrolet Aveo is one of the smaller, more fuel-efficient cars American automakers have rolled out. Stan Honda/AFP/Getty Images hide caption

itoggle caption Stan Honda/AFP/Getty Images