Named by reversing his family name "Hannoyer" to "Reyonnah," Robert Hannoyer conceived the 1951 Reyonnah Prototype N°1. This car featured an innovative foldable front-wheel design that allowed it to maneuver into compact spaces. Originating from an era of fuel and material scarcity in France, the Reyonnah exemplified the challenges of its time. Crafted for two occupants, this uniquely engineered car never entered mass production due to a lack of manufacturers willing to undertake the ambitious project. Hannoyer's tests revealed impressive capabilities, demonstrating that the 1951 Reyonnah 175 Prototype N°1 could cover 50 kilometers at an average speed of 95 km/h.
The Reyonnah Prototype N°1 was equipped with a 175 c.c. 1-cylinder, air-cooled, 4-stroke engine. It also featured 4-wheel hydraulic brakes and independent suspension, which were advanced features for its time. These components provided efficient performance and highlighted Hannoyer's forward-thinking approach to automotive design.
The folding suspension system was particularly innovative. The front wheels could retract to make the vehicle narrower, allowing it to fit into tight parking spots—an early solution to urban congestion and limited parking space. This feature was ahead of its time and showcased the practical ingenuity behind the Reyonnah's design.
Despite its promising design and innovative features, only 16 units of the Reyonnah were produced between 1950 and 1952. Today, the Reyonnah is an extremely rare and valuable vehicle. Our Reyonnah is in near-original condition, with the aluminum frame showing no signs of corrosion even after more than 70 years.
The 1951 Reyonnah Prototype N°1 stands as a significant piece of automotive history. It reflects Robert Hannoyer's visionary approach and the advanced engineering concepts of its era. This prototype is admired by collectors and automotive enthusiasts for its unique design, advanced features, and the story of innovation and perseverance it represents.
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