Constantinesco (automobile)

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The Constantinesco was a British-French automobile produced from 1926 to 1928. It was built by George Constantinesco, a Romanian-born engineer, who had gained fame by his invention of the synchronised machine gun that could fire through aircraft propellors.

The car featured a 494-cc twin-cylinder two-stroke engine of his own design, and also featured his own-designed torque converter, which eliminated gear changing. The transmission ratio was determined by the deflection of a pendulum controlled by the engine and road wheels. It was mounted between the engine's cylinders.

The car was built in Paris with the gearbox built in England. It was exhibited at the 1926 Paris Motor Show but only a few were made.