Well, sleeping in the car always was an option for me, but after I got a big family, it was necessary to buy the proper camping gear because there was no way we would be able to sleep in the car with 4 people. When going on trips with my family, I always get a large tent, electricity generator, flashlights and warm/waterproof clothes. I don't have a fear of natural predators because animals usually attack if they feel danger from your side. If you know the nature rules, no one will attack you. Su Baru well said that 2 legged ones are the most dangerous.