Luxurious Amphibious Bus

Examples of this concept are the Russian Vityaz DT-(10/20/30)P models, the Swedish Volvo Bv202 and Hagglunds Bv206 designs, and Singapore Bronco ATTC (All-Terrain Tracked Carrier).
A highly specialised development is the Arktos expedition and evacuation craft, that uses a linkage with two joints to connect the two units, as well as fitting each unit with its own engine, to give each unit enhanced independence of movement.