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Audi currently sells two versions of its R8 supercar, the original 4.2-liter V-8 model and the recently revealed 5.2-liter V-10 version, but there are two more versions in the works, one of which has been revealed today ahead of its world debut at next week’s 2009 Frankfurt auto show. The two new versions are the R8 Spyder convertible, seen here in these leaked official shots, as well as the high-performance RS variant. A spokesman for Audi previously confirmed that the R8 Spyder was delayed to allow time for sales of the V-10 hard-top to eventually die down. The Audi rep also confirmed that the Spyder would feature a full convertible soft-top roof instead of a smaller targa set-up, which was the preferred choice of engineers back in Germany. Other major changes for the car that appear to have made it to production are a pair of additional air intakes located behind the seats, as well as a pair of safety roll-over bars. Sadly, the R8’s trademark aluminum side blades have been removed.

Swedish supercar maker Koenigsegg's parent company is currently tangled up in the purchase of Saab, but that's not stopping the masters that build the CCX from advancing their craft, as proved by the CCXR Trevita revealed today. The car is named from a Swedish contraction meaning "three whites," which signifies the unique silvered carbon fiber bodywork of the Trevita. The company's Diamond Weave exposed carbon fiber bodywork is the epitome of high-tech's marriage of form and function.   Only three of the cars will be built. The core CCXR feature set is the basis, and each gets a double carbon fiber wing, paddle-shift transmission, Inconell exhaust system, carbon ceramic brakes, a hydraulic lift system for getting around town a bit more easily, and a range of creature comforts including a custom navigation and entertainment system. Pricing for the Trevita hasn't been revealed, but expect it to be suitably super. As with most of the hot bits of automotive ma