Citroën GS Birotor

The Citroën GS Birotor is one of the rarest collectible cars in the US market, with only 847 units produced worldwide. A median valuation of US$37,185 reflects its extreme scarcity and the "Holy Grail" collectibility rating it commands among enthusiasts of rotary-engine vehicles and French automotive oddities.

No sales transactions have been tracked in the US market over the past 12 months, and there are currently no active listings. This absence of market activity underscores the illiquid nature of the model—finding one for sale requires patience and specialist networks rather than conventional market channels.

The lack of transaction data means typical mileage and condition ranges for cars that do change hands remain unclear. When GS Birotors do appear, they tend to be preserved examples, given their status as mechanical curiosities and their age.

The stated desirability metric is notably low despite the Holy Grail collectibility score, which reflects a disconnect between rarity value and everyday collector demand. The rotary engine and French engineering are niche appeals, limiting the pool of buyers actively seeking this specific model compared to contemporaneous European sports cars.

Without recent sales activity to establish momentum, establishing reliable price projections or identifying directional signals is not feasible at this time. The asking price of US$37,185 sits in the territory of early-1970s European classics, though validation through active market transactions would be necessary to confirm whether current valuations reflect realistic asking prices or aspirational listings.