Here is a picture of a Ford GPA with census number P5219935. This is an in-theatre transfer from British stocks. As far as I know only one Canadian GPA was shipped to Europe.
Caption: "Personnel of the 17th Duke of York's Royal Canadian Hussars transferring from a "Seep" (waterized jeep) vehicle to the Chevrolet C15A truck which serves as the unit's bus, Weener, Germany, 13 February 1946."
Source: LAC