19. Alfa Romeo SZ
The Alfa Romeo SZ, produced between 1989 and 1991, was a radical departure from traditional automotive design, earning the nickname “Il Mostro” (The Monster) due to its unconventional styling. (hagerty.com) Developed in collaboration with Zagato, the SZ featured a 3.0-liter V6 engine, delivering 207 horsepower, and was built on a steel frame with composite body panels. (hagerty.com) With only 1,036 units produced, it remains a rare and distinctive example of automotive innovation. (hagerty.com)