The Renault Dauphine, launched in 1956, is frequently listed among the worst cars ever, largely due to severe cost-cutting measures that affected its performance and quality. A significant issue was the car’s lack of speed; it took over 30 seconds to accelerate from zero to 60 mph, which is considered poor performance for any era.

In addition to its sluggish acceleration, the Renault Dauphine was plagued by subpar construction quality. It featured thin metal components, lackluster interiors, and an unappealing exterior design, all of which made it a difficult product for dealers to sell. The car also earned a reputation for being unreliable, as it was prone to rust, deterioration, and wear within just a few years of use.