4. Citroen C6
After decades of relative mediocrity throughout its lineup, Citroen was back in 2005 with an executive sedan worthy of its predecessors, called C6. Behind this simple name was the best Citroen’s technology, the latest generation of hydropneumatic suspension with electronic control and damper setup, special construction, a range of powerful engines, and glorious design, which drew inspiration from the legendary past.

Citroen C6 was pitted against Europe’s heavy hitters in the form of Mercedes E Class, Audi A6, or BMW 5 Series, and despite being the least popular, C6 was arguably the best car which featured the most elegant interior, sophistication, and a ride quality second to none. Unfortunately, it was also kind of a sales flop, and Citroen managed to sell just over 20,000 cars in 7 years, which is very little. But it showed that the company still knows how to produce a unique French sedan that can hold its own against the competition.