It's hard to believe that the Hotchkiss Grégoire, originally called the Grégoire R or Grégoire 2 Litres, dates back to 1947. It was based on design ideas that other brands did not put into practice until 20 or 50 years later. But it was probably a few decades too early, and above all it was too progressive and too expensive for the customers of the time. This article tells the story of the Grégoire 2 Litres and its production version Hotchkiss-Grégoire, as well as its predecessors and successors. Over 60 rare photos, some of which have not been published for decades or have never been published at all, show the model development and details, while the sparse sales literature takes a look at the commercial aspects.