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 ...

The interior of the Riviera Boat-Tail reflects the luxury of the '70s ... The vehicle's customization freedom adds to its appeal, allowing each owner to make this Buick Riviera a uniquely designed ...