This has got to be the German supercar shootout of the decade.

In the left-hand corner the challenger: the Audi R8, with a mid-mounted 4.2-litre, naturally aspirated engine rated at 317kW, driving all four wheels.

And, on the right, the champion: the Porsche 911 Carrera 4S, with a rear-mounted 3.8-litre flat six good for 294kW, also driving all four wheels.

Autoexpress magazine brought the two Teutonic titans together, made them shake hands and then took the gloves off on a race-track.

The result might just surprise you.