The Scorpion Attack Buggy is a light army reconnaissance vehicle that was snatched from the said army during the whole zombie apocalypse thing. [Further back-story not currently available]
After it's current owner got his hands on it, Scorpion received an upgrade in armor and weaponry, but also a handful of bruises and dents from plowing through hordes of zombies. Other than the mounted automatic cannon, it now has a flamethrower and a missile launcher- but at the same time, it lost it's trunk due to it being used for the flamethrower, so now the driver has to keep all his stuff in the small backpack on the hood.
The door got pretty banged-up during long term usage, so the driver tried to fix it with some wooden planks to keep it from falling off. The opening mechanism still seems to work though.
The trunk also opens up, although there's not much to see... The gas and the gas pump for the flamethrower are supposed to be inside, but it ended up resembling an engine.
Other than the handy shovel, the flamethrower hose is also on the outside of the car, which maybe isn't really a safe thing... But then again, if it breaks, you wouldn't wanna have it inside the car, now would you?