UNICAT Amerigo International

The UNICAT Amerigo International may not appear to be comfortable at first glance. The interior is designed to seem like a truck, and it can tackle most of the difficult terrain out there.

The outside doesn't provide much in the way of "luxury," but it's the interior that counts - and that adds up to half a million dollars. UNICAT refers to its models as "exploration vehicles," and this is one of the toughest RVs on the market. Indeed, Jalopnik named their automobiles as one of the greatest spots to ride out rough terrain.

This RV is ideal for the true adventurer. If you look within, you will be astounded by what it has to offer. It has a desk, a kitchen, and a watermaker for purifying and decontaminating water. This motorhome's enormous petrol tank contains enough fuel for 2000 kilometers!

The UNICAT Amerigo International, which is equipped with solar panels and a 2,000-mile gas tank, can go from coast to coast without stopping. Inside, there's a kitchen, a master suite, desk space, and even a watermaker that can disinfect water and make it drinkable in an emergency. Though it costs more than a modest house, survivalists would confirm that the ability to drive over such untamed terrain is worth every penny.

The UNICAT Amerigo International ranks are eighth on our list of the world's most expensive RVs.

Price: $500,000