Set to go head-to-head with BMW’s M6 and Jaguar’s XKR, the newcomer will pack some real punch – our insiders reckon it will use a twin-turbo 4.2-litre V8. That should mean 450bhp, a five-second 0-60mph time plus a 155mph top speed. And that’s why this prototype has a deeper front spoiler with larger air intakes – they’re there to keep the engine cool. The rest of this mule’s bodywork is very similar to that of the S5, but the finished car will get bulging wheelarches, side skirts and huge twin oval exhaust pipes.
It is also rumoured that Audi is developing a bootlid spoiler which pops up at speed to keep the car stuck to the road surface. Under the skin, the engine will be bolted to quattro four-wheel drive with a 40:60 rearward power bias, while the transmission will be a twin-clutch seven-speed S tronic semi-automatic. There’ll be magnetic dampers and vast vented disc brakes, too. The RS5 goes on sale in 2010 and will cost around £50,000.
Source: Auto Express