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 ...

That puts it in the same ballpark as their Rolls-Royce Boat Tail, basically making it a two-way tie for one of the most expensive cars money can buy. So, which lucky billionaire you think will be ...