13. Peugeot 402 Eclipse Decapotable
In 1935, Peugeot unveiled the 402 Eclipse Decapotable, the world’s first production car equipped with a power-retractable hardtop. Designed by Georges Paulin and built by Carrosserie Pourtout, this innovative system allowed the metal roof to automatically fold into the trunk, transforming the vehicle from a closed coupe to an open convertible. Only about 470 units were produced before World War II, making it a rare and pioneering model in automotive history. (autoweek.com)