b) Ford Fairlane 500 Skyliner

The Ford Fairlane 500 Skyliner, introduced in 1957, featured the first practical retractable hardtop system for cars. This innovative design allowed the car to transform from a hardtop coupe into a convertible at the touch of a button. The Fairlane 500 Skyliner represented a significant engineering achievement, combining the sleek style of a convertible with the comfort and security of a hardtop. Its retractable roof mechanism was a complex system that showcased Ford’s commitment to innovation in automotive design. The Skyliner was a symbol of the optimism and technological progress of the 1950s and remains a notable achievement in automotive history.