The production of the Bugatti Type 73 began in 1943, right before the onset of World War II. Production was postponed during the war, resuming in 1947 with the introduction of the Type 73A. Ettore Bugatti's death on August 21, 1947, spelled the demise of the Type 73.
The Type 73, Type 73B, and Type 73A were touring cars that came with seating for either two or four people. All the Type 73 (A, B, C) were given, or intended to have, four-cylinder engines. The Type 73 had twin overhead camshafts with four valves per cylinder. The Type 73B was similar but had single overhead camshafts. The Type 73A had single overhead camshafts with three valves per cylinder.
Five chassis of the Grand Prix, single seater Type 73C were constructed with only one (73002) receiving an engine and testing by the factory. The chassis numbers were 73001 through 73005. The supercharged engine was a 1.5-liter straight-four with twin overhead camshafts and four-valves per cylinder. It featured a detachable cylinder head, wet cylinder liners, and an exhaust manifold constructed of cast iron. The rest of the chassis were sold off as the company ceased production. Most of the chassis was later completed, some being given bodies true to the original Bugatti design.
A single Type 73 without an engine was shown at the 1947 Paris Motor Show.
The Type 73C models are generally not held in high regard by Bugatti purists. Many of the reasons center on the fact that the chassis's were assembled by a dealer rather than the factory. These 'one-off' vehicles did not have the traditional Bugatti designs plus there are no competition records for these monoposto's.
They remain in history as the final but incomplete creations of the legendary Ettore Bugatti.
by Dan Vaughan