A Bugatti Type 57S Atalante was recently discovered in 2009 and is considered one of the rarest Bugattis in the world, auctioning for $4,408,575. Out of the batch of 710 Type 57 cars built, only 17 featured the Type 57S Atalante coupe coachwork.
The particular model that went to auction was built in May 1937 and originally owned by Francis Richard Henry Penn Curzon; a winner of the 24 Hour Le Mans race and the British Racing Drivers’ Club's first president. The car was later owned by English orthopedic surgeon Harold Carr, who acquired it in 1955 and decided to garage the vehicle in the early 1960s after the expiration of its tax disc. Sitting for nearly five decades, this rare Bugatti wouldn't be discovered until two years after Carr passed away in 2007. The model owned by Carr has a chassis that is uniquely marked 57502 and can be distinguished easily from others of the same type.
The 57502 was speculated to be the most expensive car to ever go to auction due to its low mileage of 26,284 miles, original body, chassis, engine and drivetrain. A few post production modifications were made to the vehicle, including rear-view mirrors on the A-pillars, a luggage rack, unique bumpers, and a Marshall K200 supercharger. Sadly, the 57502 didn't break the record for the most expensive car sold at an auction, and many attribute this to the recession of 2008 in the United Kingdom.