The car was brought back after World War I with a multivalve engine to bring fame to the marque at Brescia.

On ending his contract with Deutz, Ettore loaded his family into the Type 10 and headed to the Alsace region, then still part of the German Empire, looking for a factory to begin producing cars of his own.

The car was preserved and nicknamed "la baignoire" ("the bathtub") by the staff at Molsheim in later years due to its shape.

Ettore restored it in 1939 and repainted it an orange-red color, earning it a new nickname, "le homard" ("the lobster").

It was moved to Bordeaux for the duration of World War II and remained there for decades before falling into private ownership.

Upon starting operations at his new factory in Molsheim, Bugatti refined his light shaft-driven car into the Type 13 racer.

Power output with dual Zenith carburetters reached 30 hp (22 kW) at 4500 rpm, more than adequate for the 660-lb (300-kg) car.

Ettore took two completed Type 13 cars with him to Milan for the duration of the war, leaving the parts for three more buried near the factory.

Post World War I, A Grand Prix for Voiturettes at Le Mans was the only French event of 1920, and Bugatti entered the two completed cars from Milan and one more from the remaining parts.

Ettore's illegal act of placing a hand on the radiator cap during the race brought disqualification to the leading car, however.

Bugatti's cars finished in the top four places at the Brescia Grand Prix in 1921, and orders poured in.