According to Rolls-Royce, the history of the Sweptail commission began in 2013 when a "connoisseur and collector of distinctive, one-off items including super-yachts and private aircraft" came to the company with an idea for a bespoke luxury coupe.
The customer began working with Giles Taylor, Rolls-Royce's director of design, and inspiration was drawn from modern and classic luxury yachts, as well as coachbuilt Rolls-Royces from the 1920s and 1930, including Jonckheere's 1925 Phantom I Round Door, Park Ward's 1934 Phantom II Streamline Saloon, the 1934 Gurney Nutting Phantom II Two Door Light Saloon, and the 1934 Park Ward 20/25 Limousine Coupé.
At the front, the Sweptail has a hand-polished grille, which was milled from a solid slab of aluminium and is said to be the largest grille yet seen on a modern Rolls-Royce.
The main changes, however, occur around the sides and rear, with the roof line stretched and pinched to incorporate a large panoramic glass roof. From the rear and above, the shape of the roof and glass is said to be inspired by racing yachts.
The car's registration number, 08, is milled from aluminium ingots, and hints at the buyer hailing from an Asian country.
On the inside, the Sweptail has plenty of bespoke wood veneers, aluminium and leather elements. There's seating for just two people, with the rear bench replaced by a handcrafted shelf with space specifically designed for hats.