Plymouths were manufactured from 1928 until June 28, 2001, when a Neon was the last vehicle assembled. While the company had been around for a long time, there are only a few hundred used Plymouths on AutoGuide.com.
A search on AutoGuide.com returns the unmistakable Prowler, family-friendly Voyager, and used Plymouth Neons. With an inventory that's updated daily, your search will return up-to-date results.