As a "car guy" when I watch tv, sometimes I watch the show Top Gear. Every car guy knows who 'The Stig' is, but if you don't know, he's a helmeted driver who keeps his identity under wraps. He doesn't speak a word and his 'job' is to test drive cars at the edge of their performance envelope. He's cool..
Some say that his heart is in upside down, and that his teeth glow in the dark... all we know is, he's called the Stig.