The Marendaz Special 11/120 was a car produced between 1925 and 1929, it sold for £750. It was the supercharged version of the Marendaz Special 11/55.

The car was fitted with a 1496 cc side-valve 4-cylinder Anzani engine with a supercharger. The engine drove through a cone clutch (later a single-plate clutch was used) and a three or four-speed gearbox to a spiral bevel rear axle. The engine produced 120bhp and the top speed is unknown.

The chassis was 104in long and had cantilever springs in the rear and double shock absorbers all round. Four wheel brakes were fitted with the front being pedal-operated and handbrake operating the rear wheels.

It is not known if any were ever built.