In the 1960s, Mercedes-Benz built the Unimog 406 Series. These multi-purpose trucks were known for being 4WD and having exceptional off-road performance. The Unimog can be used in environments such as deserts, jungles and mountains. Unimog is an acronym for "UNIversal-Motor-Gerat" with Gerat translating to mean machine or device. The vehicles featured an inline 6-cylinder diesel engine, 8-speed transmission, and front/rear lockable differentials.

First released as a radio control assembly kit, the Unimog is also available as a factory assembled and finished Expert Built ready to run truck.