The kharkovchanka or "snow tractor" was a vehicle designed with polar exploration in mind. Notably for exploring Antarctica, (which is actually the biggest desert in the world). These things had a top speed of about 20 mph, and could comfortably fit six people. Forget stopping to camp, you could sleep inside of this thing, and it was able to keep itself heated. If I was going to the south pole, I'd go in this.