For years, Volkner has been vying for the top spot in the motorhome sector, and with the newly unveiled Performance S, they've finally pulled away from the pack. The over-the-top home on wheels offers a package upgrade priced at $7.7 million, making it by far the most expensive motorhome available. Its hefty price tag starts with a slide-out that can stow a $3 million Bugatti Chiron. No hypercar? No problem. The garage space can also transport other cars or recreational vehicles and doubles as an outdoor terrace. Its lavish cream interior is trimmed out in glossy, hand-laid Macassar veneer, and features a kitchen, rear bedroom with a spacious bathroom, U-shaped lounge. To power the appliances and custom Burmester audio system, the motorcoach is equipped with a 2,000-W rooftop solar array, an 8-kW generator, and a lithium battery bank.