2010 Audi R8 5.2 FSI quattro – Click above for high-res image gallery

We've learned to take "scoops" from Auto Express with a grain of salt. But Britain's car tabloid says they have it on good authority that Audi is working on an even more extreme successor to the current range-topping R8 supercar.

Dubbed the R10, the heart of the new four-ringed exotic is listed as a twin-turbo 5.0-liter V10 mounted amidship and pumping out 600 horsepower – through all four wheels, natch. The platform is tipped to be shared with sister company Lamborghini's upcoming replacement for the aging Murcielago, crafted from aluminum and supplemented with carbon fiber.

While such a performance beast would encroach on Lamborghini's territory and, from the sound of it, even approach Bugatti's, the Volkswagen empire has proven particularly adept at packing segments with its own products, so anything's possible. AE says prototypes are already lapping the Nurburgring and could be ready for delivery by 2012.

[Source: Auto Express]