Renault NN
The Renault NN, generally known to contemporaries simply as the Renault 6 CV, is a compact car or small family car manufactured by Renault from 1924 until 1930. Details and evolutions. Powered by a 4-cylinder 951cc engine, the NN was first presented at the 1924 Mondial de l'Automobile in Paris as the successor for Renault Type KJ and Type MT. It was in effect a lengthened version of the MT, with an extra of wheelbase, and the addition of front-wheel brakes. The exterior design was very simple and family-oriented. Renault at this stage still positioned  the radiator behind the engine, which meant that there was no grill at the front, but there were prominent "gills" on the sides of the bonnet/hood for cooling purposes. The car reached and 150,000 cars were sold. The NN2 was introduced in 1929, a larger and heavier car. The car was replaced by the Renault Monasix, though this was a larger car and was powered by a (small) 6-cylinder engine. It was only in 1937 that the manufacturer launched a replacement model in the 6 CV class, the Juvaquatre.