The following Chrysler vehicles used the internal code of PL.
1995-2005 Dodge Neon
1995-2001 Plymouth Neon
1995-2005 Chrysler Neon
2003-2005 Dodge SRT-4
2000-2005 Dodge SX 2.0

https://en.wikipedia.org/wiki/List_of_Chrysler_platforms
https://en.wikipedia.org/wiki/Chrysler_Neon