vikeys are confusing to me, but it's only a minor issue. It only applies in the main menu, crafting, and looking at your skills. Normal gameplay uses normal numpad.
ALSO!
I've made a character to abuse vehicles. As soon as I start, I realize I'm miles away from town, so I rush in, find some army pants and utility vests, and then find a whole truck in a parking lot! Move a bit, and I've got 3 mechanical skill, a wrench, hacksaw, welder, enough batteries to overfill a UPS, and I've stumbled upon a motorcycle.
My question to Bay 12 is now, "What shall I build?" I intend to make this character a pure nomad, running around from one town to another, collecting vehicle components, expanding the death machine, and moving on. Turns out this is phenomenal, the truck keeps me protected from just about everything, I can mow down brutes with one pass, and if zombies try to clog me and crowd up, I can literally just push through them slow but surely. I'm amassing huge piles of water and MREs just hitting military surplus stores, and have infinite crafting tools via electronic stores.
I'm thinking that I need to develop a moving fortress, just amassing armor and engines as much as I can with a few turrets and enough spare parts stored away to assemble a small scouting bike in case I want to park the fort somewhere and go looting supplies recreationally. Ideally I'd also like some inner doors, but it seems the only door you can build is one that you can see through. I'd like an area set aside so that I can sleep and craft and read in peace. I may end up doing a double-door that leads into a small enclosed area with open space - no floor, just showing the asphalt underneath - so that I can pull items from the cargo and drop them inside the vehicle without leaving the vehicle, and I could build my scout bike inside the megatruck, open both doors, and drive it out. If done right, that should also give me a little corner where mobs couldn't see me either and nothing could interrupt my crafting/reading/drugs.
So dwarves. Any ideas on how I could thoroughly abuse the vehicle mod?