So what do we know about the proposed RS5?

We expect the free-revving, naturally aspirated 4.2-litre V8 from the current RS4 to be installed in the A5's new platform. Count on at least 420 bhp and 317lb ft - enough for rampant acceleration of the 911-worrying variety.

The new layout moves the front axle 120mm further forward for better weight distribution, effectively nudging the motor back in the engine bay for a more even 55:45 front-rear balance. The A5's engineering boss, Stefan Härdl, told CAR Online that the new layout dramatically improves the handling. 'It really helps the steering - it's more precise and direct than even the RS4, we've removed all the elasticity.'

What else can we expect?

Audi’s Magnetic Ride dampers are a certainty, although you’ll have to shell out at least £1200 for them. A manual gearchange and rear-biased quattro four-wheel drive will be standard; 60 percent of drive goes to the rear wheels for more alert handling.

Will the R8’s ceramic brakes make an appearance on the RS5? If Audi wants to challenge Mercedes and even Porsche, it will have to pull out all the stops. Just don’t expect much change from £53,000.