Renault Df104 Apr 2026

It is the French automotive equivalent of a lost Beatles tape: imperfect, unfinished, but utterly brilliant.

But in 1972, Renault pivoted. Instead of building the radical DF104, they took its soul —the lightweight ethos, the flat engine, the utilitarian interior—and watered it down. renault df104

When you think of classic Renaults, the mind usually drifts to the boxy charm of the 4, the rally-dominating R5 Turbo, or the quirky elegance of the Avantime. But tucked away in the secret archives of Renault’s historical collection— l’Usine de Flins —lies a car that breaks all the rules. It is the French automotive equivalent of a

Do you have a favorite "forgotten prototype"? Share this post with a friend who loves weird old cars. When you think of classic Renaults, the mind

Renault called it the "Moteur Billancourt soufflé" —a nod to the legendary 4CV engine, but turned sideways and blown cool by air rather than water. Here is why the DF104 never saw production: The seating.

Renault’s marketing department had a meltdown when they saw the layout. The driver sat in the center. Two passengers sat slightly behind and to the sides, like an arrowhead.

30 HP sounds laughable today. But in a car designed to weigh less than 500 kg (1,100 lbs), that was enough to zip through the narrow streets of Paris with shocking agility.