Rolls-Royce Sweptail is a jaw-dropping one-off coupe

Back then, it wasn’t unusual for companies like Rolls-Royce to build to the whims of wealthy patrons. Whether a cabriolet version of a car ordinarily offered as a hard-top, or a racing alternative of what would normally be a road car, such projects marked an age where a car company’s reputation was based not so much on how many vehicles they built and sold, but how unique they were.