11. Cadillac Seville
The 1975 Seville was shocking to Cadillac purists as the first downsized Caddy ever and an affordable luxury car. But it was an extremely smart move by the company and one of the best US sedans of the late ’70s. After the 1970-77 period marked by big land yachts and heavy cruisers, Cadillac realized that the market has turned to more nimble and precise foreign cars such as Mercedes W116 S Class. So it decided to introduce a smaller and more modern car that was every bit a Cadillac so the market would accept it as such.

The 1975 Seville turned out to be the perfect car for the time. Sales went beyond expectations. The Seville was elegant, perfectly sized, and reasonably powerful, and it came with a long list of options and trim choices, including an interesting Slantback body style and even a Gucci-themed trim package. The Seville was based on Chevrolet’s Impala platform. It wasn’t special in terms of engineering or design. It didn’t feature any innovative systems or components. However, its value was in forward-thinking and foreseeing the changes in the luxury car class. The Seville was the first modern luxury car with a host of special versions, trim packages, and better fuel economy.