The GS platform (also known as "Project Global" by Mitsubishi) is a compact car platform co-developed and shared by Mitsubishi Motors and DaimlerChrysler.
After dissolution of the DaimlerChrysler / Mitsubishi partnership in 2004, DaimlerChrysler made substantial changes to the platform[1] subsequently naming it the JS platform for mid-size cars and PM/MK for compact cars.
Mitsubishi's GS vehicles are manufactured in Japan with the exception of the RVR/Outlander Sport, which was manufactured at the former Diamond-Star Motors plant in Normal, Illinois, USA.
PM/MK vehicles from Chrysler are assembled at Belvidere Assembly in Belvidere, Illinois (Dodge Caliber and Jeep Compass) and JS Vehicles were produced at the Sterling Heights Assembly (Chrysler 200 and Dodge Avenger).
Chrysler said the 200's predecessor, the Chrysler Sebring, and Avenger did not use the GS platform, though that was their starting point.