The 1975 Seville was shocking to Cadillac purists as the first downsized Caddy and an affordable luxury car. However, it was an extremely smart move by the company because it was one of the best U.S. sedans of the late ’70s. The 1975 Seville was the best car for the time, so sales went beyond their expectations. The Seville was elegant, perfectly sized, and reasonably powerful. And best of all, it came with a long list of options and trim choices.