20. Rover SD1
Most hatchbacks were economy cars, but Rover decided to introduce a premium sedan with this feature. They imagined it as the family sedan of the future, presenting the SD1 in 1976.
It was immensely modern with aerodynamic styling, a hatchback rear end, and a futuristic interior. The base versions were powered by a 2.6 liter 136 HP engine, but a 3.5 liter V8 was also available.