It shared the mechanical elements and bodywork options of the Renault Monasix but was differentiated by superior levels of finish and equipment.

[1] The Monastella was a more luxurious version of the Monasix which had itself first appeared at the 1927 Paris Motor Show.

[1] Apart from the superior equipment levels, it was differentiated from the Monasix by a plate that said "carrosserie STELLA": at a time when names for cars rarely went beyond defining their engine size and type, this badge stressed the manufacturer's determination to differentiate the two models.

[1] However, starting with the massive new Reinastella at the end of 1928, Renault moved the radiator to a more conventional position ahead of the engine, and by time of the next motor show, in October 1929, all Renaults including the Monastella's, lost the old "wind-cutter" grill-free front panel, in favour of a conventional front grill, reflecting the positioning of the radiator to a more "normal" position, just ahead of the engine block.

[1] (This also meant an end to the prominent "gills" just ahead of the doors on the sides of the hood/bonnet that had formerly directed air onto the curiously positioned radiator.)