The interior of the Riviera Boat-Tail reflects the luxury of the '70s era. Vinyl or leather-upholstered seats, wood panels, and chrome details created a sophisticated and welcoming atmosphere.

Worth an estimated $28 million, the new custom-built Rolls-Royce Boat Tail is the most expensive car in the world—and it’s full of luxury amenities. The vehicle is the first to come out of the ...