27. Renault Avantime
The Avantime was the answer to a question nobody asked, so people gave it mixed reviews. However, the car was an engineering success with a massive hardtop roof. Also, it came with problematic structural stiffness, which Renault engineers managed to keep under control.

The Avantime was also expensive and came with only the most powerful engines and a high level of equipment standard. But, although the Avantime was an interesting car, it was downright ugly, so it failed to attract customers. Renault discontinued the model after only two years, producing just 8,000 of them.