It was the late Bill Yoak's love affair with the Mustang that inspired him to craft Quicksilver: A stunning P-51D that he hoped would be the most beautiful aircraft in the world. Looking at its smooth contours and silvery flawless skin it's hard to argue that Bill did not succeed. Listen to Bill and his son Scooter, describe the incredible 16 year journey from concept till Quicksilver's first flight.