First off, I need to credit this creation as my primary inspiration. I kind of want to add something like the angled armor plate on the front of this thing... I'll see what I can do.
The Honda-Ziplok Clan finds most of its vehicles in the Ancient communities known as "Suburbs". Though the shoddily-built McMansion homes of pre-nuclear-war suburbia collapsed as soon as the bombs hit, the massive cars in their driveways have survived to this day. Well armored even without additional plating and big enough to carry thirty 10cm rockets at once, the 2021 Cadillac Excess seemed like the perfect assault vehicle -- until the prototype flipped over onto its back during a battle against the Wendiz Clan. After spending the battle cowering behind their upside-down tank, the crew demanded that the Priest-Mechanics make a few changes. This is the result.
That little spotlight in front can flip down to allow the rockets to fire.
The main turret. Yes, that is a skull atop the antenna. "Darn it, this radio only picks up death metal!"
The vehicle's turret can hold 10 rockets at a time and has to be reloaded manually; they carry two more sets of rocket ammunition in the hold. Officially, the clan rules state that you have to stop the vehicle at some covered position to reload. Unofficially, this is suicide on a contested battlefield and nobody ever, ever does it.
When the rockets run out, it can deploy a minigun from the forward hatch.