When I read the title for this thread -- "Mustang vs. Harley" -- for a second I flashed that that might be a cool drag race: a P-51 Mustang fighter from WWII versus a Harley. But that would need to be on a runway or a very wide drag strip because of the wingspan of the '51. I think it would be a very close race. Top speed for a Mustang is several hundred miles per hour, but from standing still, it may take enough time getting up to takeoff speed that a Harley just might edge it out at the quarter mile post. Who's got a wide drag strip, a Harley and a P-51 Mustang?