There's lots of good news when it comes to the Pagani Huayra Roadster. It has the same Mercedes-AMG twin-turbo V12 as its hard-topped predecessor, yet ups the power to 754 hp, sent to the rear wheels via a seven-speed gearbox. Space-age materials carbo-titanium and carbo-triax are used to craft the monocoque, delivering a 52% increase in stiffness while shedding about 80kg compared to the coupe — unheard of for a roadster conversion. It also looks fantastic. The bad news? Pagani is only building 100 examples and has already sold them all.