5. Citroën Ami 6
The Citroën Ami 6 is unmistakable, thanks to its reverse-raked rear window and unapologetically boxy lines. This French creation looked odd even by the most avant-garde standards, but its eccentricity masked genuine innovation.
The unique rear glass helped keep it clear in the rain, and the spacious interior was ahead of its time. What was once considered a design misfire is now revered as a classic, celebrated for its bold approach and practicality. Hemmings