What is a Dodge 2000 GTX?

This car is the same as a Galant GSX - a non-turbo AWD sedan. There is little other information available; you can read this description provided by About.com and Allpar. It should be noted that the engine used in the "mighty" versions of the DSM family is presumably the 200 HP 2.0L turbo, not the 135 HP 2.0L non-turbo used in the 2000GTX family.