The Marendaz Special 13/85 was a car built in 1934.

The car had a 1869cc side-valve six-cylinder Continental based engine. Power was driven through a single-plate clutch and a four-speed gearbox. The engine featured coil ignition and had different pistons as well as revised manifolding. The engine produced 85bhp.

The chassis was 9ft 9in and had semi-elliptical leaf-springs in the front and cantilever springs in the rear. Hydraulic drum brakes were fitted.

The car was available as a two-seater, a four-seater, and a coupe.