The Vincent.

Traffic For Popular Mechanics, Jay Leno remembers the Vincent Black Shadow:

"Where I grew up, in a small New England town, the Vincent was a motorcycle you only ever heard about. But the legend surrounding the bike was so strong. There was a guy who lived a couple of towns over who had a Vincent that had allegedly run in the renowned Isle of Man Tourist Trophy race off the coast of the U.K. Every now and then, somebody at school would say, "I heard it go by the other night." All the kids would stop to listen to his story. "What did it look like? What did it sound like?" We all wanted to know."