This 3 million dollar mansion on wheels is the most luxurious RV around. It is one of the top 10 most expensive RV around. This RV has pretty much everything you need for a perfect life style you can even keep your car in the back of the RV. There are tons of cool features like a retractable roof top, a bar, multiple bedrooms a separate kitchen room, fireplace, numbers flat screen TVs, and a wireless command center. The engine is 510 bhp diesel it can go up to 93 mph.