My ultra-high-efficiency vehicle:
The driver’s seat is an inner tile. It’s surrounded by 3 turrets for protection (Why even bother with walls?).
The bottom right and left have a welding rig and kitchen, respectively. The back center holds a cargo carrier.
Still need to find a mini-reactor; the three quantum solar panels help a bit, but take a long time to recharge. Then again, the battery capacity is so high that even the current power could last for a week or so.
It has 3 motorcycle wheels, I haven’t found that many motorcycles in the playthrough oddly.
The left and right turrets are Modded NX-17 Pulse Cannons, the damage they deal is fairly low, but they fire in bursts of three and are strong enough to pierce through moderate armor. In case anything comes while I’m asleep, they wake me up quickly enough to accelerate away.
The forward turret is a 5-shot can-grenade volley launcher. Can grenades come in multiple flavors; acid, explosive, fragmentation, tear gas, incendiary, and mininuke. They’re just a can and some scrap filled with their respective payloads that detonate on impact. The gun itself is essentially a pneumatic pipe launcher; it has high dispersion, so those 5 shots tend to spread out with very respectable effectiveness. The recipe lacks a targeting computer; since I can’t really replicate the effect in JSON, it has to be manually loaded after every volley i.e. it only holds 5 can-grenades at maximum.
The general tactic against zombie hordes is to strafe individuals with pulse cannon fire; and when they collect together, load the can grenades and fire into the group.
I originally had an enclosed supercar, but the walls just kept getting bashed in my enemies. This was my city runner, which was eventually converted into a mobile mini-fort. It can’t take very many hits, but it rarely gets hit at all. Monsters won’t bash any part of it and get shot apart by the pulse turrets before they get close.