Type 57 engine

Car : Bugatti 41 Royale
Year : 1925-1933
Engine : 8 cylinders in line
Bore and stroke : 125×130 mm
Cylinder capacity : 12760 cc
Gears : 3 forward
Brake horse power :300
Maximum speed : 120 mph
Wheelbase : 14 ft 2 ins (4.31 m)
Suspension : front: semi-elliptic leaf- springs ;
rear : upside down ¼ elliptic leaf- springs and hydraulic shock-absorbers

Maurice Smith, editor of ‘Autocar’ visited the Molsheim factory and was able to ascertain that there were six Royales, including the prototype, in production. Paul Kestler, another Bugatti historian believes that there are seven Royales because the six known cars all had a wheelbase of 15 feet (4.57 m), whereas the prototype had a wheelbase of 14 feet (4.27m). Ettore Bugatti had an accident in one Royale, the four window Weymann, whilst traveling from Strasbourg to Paris. He hit a tree but did not receive any serious injuries. There is speculation as to whether the chassis was rebuilt and the car was transformed into a coupé Napoleon to a design of Jean Bugatti, or whether it was destroyed in the accident. Because the rebuilt car also had a wheelbase of 15 feet (4.57 m), Kestler deduces that the prototype that was involved in the accident was completely destroyed.
The first Royale was sold in 1932 to the French textile manufacturer Armand Esders. The body, a 2-seater roadster was personally designed by Jean and hydraulic shock-absorbers. It was later given a new body (coupé de ville). The second was sold, also in 1932, to the German gynecologist Joseph Fuchs as a 2-door cabriolet by the car body designer Ludwig Weinberger in Bavaria. The third was delivered to the English landowner W. Foster in 1933 who had it built as a 7-seater limousine by Parl Ward of London. The three remaining Royales stayed with the Bugatti family.