It's hard to say that Elvis' BMW 507 is the most sought-after Bimmer ever. But it's definitely close. Stored in a California pumpkin barn for decades and at one point believed lost, it's most certainly the most interesting of the 254 507s ever built. It was originally owned by driver Hans Stuck, who drove it in both casual and racing situations. Elvis bought it in 1958 from a dealer in Frankfurt while he was in the military, and at one point even had the white car repainted red to hide the lipstick messages female fans would write on the car. After its recent discovery, the car was given an extensive restoration by BMW Group Classic, who had to build many of the parts from scratch as so few original parts still existed, and did so by using period-correct techniques, as opposed to modern manufacturing. The finished car will be exhibited for the first time at the Pebble Beach Concours d'Elegance, giving the public a glimpse at this truly one-of-a-kind artifact.