The Monaquatre (Type UY1) was a small family car assembled by Renault between 1931 and 1936.
It used a conventional front-engine, rear-wheel-drive configuration and was powered by a four-cylinder water-cooled engine.
Launched in October 1931, the Monaquatre was similar in design to Renault Primaquatre large family car with which it shared its 2,650 mm (104.3 in) wheelbase.
At the 1932 Paris Motor Show the new Type YN1 version appeared, the engine size increased from 1289 cc to 1463 cc.
In October 1933 the type YN2 appeared at the Paris Motor Show, featuring a redesigned bonnet, the angle of the radiator grill being now a little more raked.
The YN2 was a transitional model, the manufacturer having already decided to fit “aérodynamique” bodies with fashionably sloping tails replacing the very vertical rear ends of the existing cars.
By this time the Monaquatre was offered a choice from seven different body types, including 4-door berlines with four or six side windows and, at the top in terms of price, a 2-door 2-seat cabriolet.