The first thing to do to get vehicles is to build this building for a few hundred resources. Or just get a Warthog from the UNSC Firebase. The building has air conditioning and a lounge for crafters. While making vehicles in the depot, you stay outside in the heat. You look into a window and see the crafters relaxing in the comforting lounge while you drag 200-pound crates of supplies in the heat. Anyways, you can get any land vehicles here that include drunk drivers in it. The other unfortinate thing is that you can't put hydralics on your car.