Cycle cars are very collectible today. Peugeot created the Type 161 to aid recovery after the First World War. The vehicle’s width was so diminutive that the two seats were placed in tandem, not side-by-side and so nicknamed the Quadrilette. A cheap, practical, small economy car shown at the 1920 Brussels Motor Show and sold in 1921. It was in the lowest tax bracket (for cyclecars tax was FF 100 pa, the 4-cycle, 4-cylinder water-cooled engine displaced a mere 667 cc (41 cu.in.) and produced 9.5 horsepower (7.1 kW) with a very lightweight body, under 350 kilograms (770 lb). Later in 1921, the Type 161 E was introduced with side-by-side seats, the passenger seat slightly back to allow the driver room to operate the pedals. The car retailed for FF 9,900 with top, acetylene lights, and spare tire, FF 9,400 without. Fuel economy was impressive at 5L/100 km (45 miles per US gallon or 56 miles per Imp gallon). Top speed was 60 kilometres per hour (37 mph). Total production of the Quadrilette was 12,305 over three years, 31% of Peugeot’s vehicle production for that period. Confusingly, models of the Type 172 were attached both to the Quadrilette’s nameplate and to that of its successor, the Peugeot 5CV. The Quadrilette and 5CV were sold side-by-side in 1924, after which Quadrilette production ceased.