Helsinki holds its own muscle car cruising night every month from April through October, and the July 2012 edition proves American iron has fans far outside the United States. A matte black 663-horsepower Shelby GT500 convertible shares the lot with a Bullitt tribute Mustang, a fleet of Mopar muscle, and even a 1930s Auburn Speedster. It is proof that horsepower obsession does not stop at the American border. See which car steals the show.