About Mitsubishi Grunder
Model origin should be USA, the chassis was based on US-spec Galant [DJ]
https://www.imcdb.org/vehicles_make-Mitsubishi_model-Grunder.html

About Cushman White Van/ Truck
Model origin should be TW, just a rebadged CMC Varica
https://www.imcdb.org/vehicles_make-Cushman_model-White.html

Miscellaneous
https://www.imcdb.org/vehicle.php?id=1224308
https://www.imcdb.org/vehicle.php?id=1781184