2. Helicopters
Helicopters aren't the easiest things to fly, but if you're lucky someone from your group may have some experience. Helicopters.. speaks for itself really? Gives you space for some people and supplies and keeps you clear of Walkers. They get you around without coming upon any real obstacles. You don't really need to bulk up your chopper. Maybe a little bit, repairing at most. You're safe in the sky if you have a decent pilot. Your next problem of course is if you have a malfunction. In a car you're not totally doomed, but you're as good as dead if you fall from the sky. You don't come across helicopters everyday. You'll find ones at some military depots or other places around the country but you rarely see a Chopper just chilling in the middle of the road.