Filming is currently underway for the third season of Amazon's The Grand Tour. In our current age of social media, it has become impossible for shows as popular as this to keep secrets, and we have already seen footage of the show's hosts driving around Scotland in three old Italian sports cars. Now Clarkson, May, and Hammond have been spotted in Detroit driving three muscle cars. The Grand Tour happened to be filming outside the office of Motor1, who managed to capture footage of the shoot.