America's wildest custom cars at SEMA

What began as the Specialty Equipment Manufacturers Association trade show for peddlers of spare car parts has grown into a Vegas-sized gathering of every wild idea at large in the American automotive scene. While automakers bring scores of vehicles to SEMA every year hoping to generate publicity for their parts stores, it's the grassroots custom cars that bring the show life — and this year's dispays ran from 2,000-hp Impalas to a lowrider wagon that doubles as a rolling tribute to a well-liked photographer.