23: 2003 Lincoln LS
The Lincoln LS took almost all its mechanicals from the Jaguar X-Type. Everything down to the power plant was designed by Jaguar, and that was not a good thing. Jaguar reliability at the time was lackluster at best and the LS was critically panned (via Forbes).
While it did have V8 power, it didn’t utilize it well. The performance of the LS and lack of reliability just didn’t justify the high price tag. There are few cars worth forgetting as much as the Lincoln LS.