Audi's high-performance RS5 has stepped out of the shadows! Our photographers captured these shots of the upcoming performance coupe testing completely undisguised.

Powered by a 450bhp 4.2-litre twin-turbo V8, it’s more powerful than the 414bhp 4.0-litre V8-engined M3 and boasts a Quattro four-wheel drive system too, available with a choice of both six-speed manual and seven-speed twin-clutch gearboxes.

The choice of engine has come as a shock to many who believed that the V10 engine used in Audi's flagship R8 would power this latest performance model. However, high consumption figures from these large capacity engines have meant that manufacturers are reluctant to use them, opting instead for turbocharged, smaller engines.

Performance will be epic with 0-60mph in 4.5 seconds and a top speed electronically limited to 155mph. The RS5 will be a match for the M3 in the corners too with stiffened and lowered suspension, a wider track and stickier rubber.
In addition to four-wheel drive, it will also boast Audi’s new active rear differential – as used by the latest S4 – which helps distribute torque to different wheels, aiding agility and traction.

Audi is expected to announced the RS5 at next year's Geneva Motor Show. Prices will start at around £48,000