Superlink Revoltech Convoy.
Aside from being a sterling example of a Convoy design by someone only vaguely familiar with Convoy, Revoltech Convoy has a disturbing undocumented feature.
Death Stinger ver. Busou Shinki.
A Diorama Studio digital “kitbash” by Ekono using weapons and armour from various figures.
Unicycle tank.
The first thing that come to mind when I saw the design was Spiral Zone. Bandai designed two unicycle vehicles, Zone Rider Cycle (Monoseed in Japan) and the Rimfire Cannon (Monoseed II), for the 80s toyline. Tonka took the concept, created new toys and financed a toon in 1987 to market the toys.