Constantinesco (France)

Constantincsco was a short-lived automobile manufacturer based in Paris, active from 1926 to 1928. The company was founded by George Constantincsco, a Romanian-born inventor who became a naturalized British citizen in 1916. He gained recognition for his invention of the synchronized machine-gun, which allowed bullets to be fired through the rotating blades of a fighter aircraft, supplying around 50,000 synchronized gears during his career.

In 1922, Constantincsco began developing a unique torque converter designed to eliminate the need for gear changing in vehicles. This innovative system utilized a swinging pendulum that adjusted its rate of swing based on the resistance from the output shaft connected to the road wheels. The engine employed in the Constantincsco vehicles was a 494cc vertical twin 2-stroke, with the torque converter manufactured in London while the rest of the car was constructed in Paris.

The company produced a limited number of vehicles, including open two-seaters priced at £250 and a saloon model listed at £370. A prototype was showcased at the 1926 Paris Salon, although the brand did not participate in the Olympia Motor Show. Despite its brief existence, advertisements indicated that several Constantincsco cars were available for viewing in London at Devonshire House, Piccadilly.