Audi has today revealed the 2011 Audi Quattro concept, developed to honour the 30th birthday of both its quattro all-wheel-drive system and the original Audi Ur-Quattro.
The subject of rumours stretching back to August last year, the Quattro concept is built on a shortened version of the A5 platform and shares many components with the new RS 5.
At just 1300kg, the Quattro concept is almost the exact weight of the original Ur-Quattro, which came in at around 1290kg.
The Quattro's body is made from lightweight aluminium components constructed with Audi Space Frame technology.
Power for the Quattro concept is rated at 300kW, provided by an enhanced version of the turbo-charged five-cylinder engine driving the 250kW Audi TT RS.
The power-to-weight ratio of 4.3 kilograms (9.48 lb) per horsepower puts it on par with that of the R8 V10, Audi's top-shelf supercar.
Thanks to the boost in power and its 150kg lighter body, the Quattro concept is capable of blitzing the TT RS's 4.6 second 0-100km/h time, covering the distance in a claimed 3.9 seconds - beating even the 4.1 second run of the V10-powered R8 5.2 FSI.
The Quattro is of course fitted with Audi's legendary quattro all-wheel-drive system, utilising a 40:60 rear-biased torques split.
On the styling and design front, the Quattro concept measures 4.28m long, riding on a 2.6m wheelbase - 150mm shorter than the wheelbase of the RS 5 - offering superior agility and reducing weight.
Roof height was also reduced by 40mm to cater for the new proportions and provide a more aerodynamic cut.
Inside, the Quattro gets a pair of filigree-styled bucket racing seats weighing in at just 18kg each - a saving of about 40 percent over a regular Audi seat.
Braking is handled by drilled carbon fibre-ceramic discs up front, with red-anodized, six-piston fixed calipers.
The Audi quattro concept rolls on large cast-aluminum wheels in seven twin-spoke design. The 9J x 20 wheels are shod with 275/30 tires.
Like the Audi R8 LMS GT race car, the wheels of the Audi quattro concept have a central locking mechanism for fast changes.
Audi has yet to reveal any plans for a production future for the Quattro concept.