Last year Audi showed off no less than seven concept cars based on its A1 compact at Austria’s annual Wörthersee Tour GTI meet, and this year the automaker is set to stun show goers once again with yet another sultry A1 sports car concept.

The latest is called the Audi A1 clubsport quattro Concept and it’s essentially a preview of new adhesive film decals set to be released in an upcoming accessories program for the A1 family of hatchbacks.

According to its designers, the decals give the car the impression of having just emerged from a workshop, freshly painted, on its way to an initial visit to a race track.

Sitting in a beautiful carbon fiber encased engine bay is Audi’s familiar turbocharged and direct injected 2.5-liter five-cylinder powerplant from the TT RS and RS3 Sportback. However, output has been lifted to a staggering 503 horsepower, which peaks from 2,500 rpm all the way up to 5,300 rpm, while peak torque comes in at 487 pound-feet.

Drive is sent to all four wheels via a six-speed manual gearbox and quattro permanent all-wheel drive.

The wheels are 19-inch alloys, which are shod with 255/30 low profile rubber and house internally ventilated carbon ceramic brake discs up front and conventional steel discs in the rear. The coilover suspension of the A1 clubsport quattro features adjustable compression and rebound damping.

Another area where the A1 clubsport quattro shines is its overall weight of just 3,064 pounds, which was achieved through the use of carbon fiber in replacement of many of the A1’s standard parts. Together with the supercar-worthy engine, the sporty hatch will accelerate from 0-62 mph in just 3.7 seconds, past 124 mph in 10.0 seconds and easily reach its electronically governed top speed of 155 mph.

The turbocharger, intercooler, admission tract and the exhaust line have been systematically tuned for high performance, and just like on Audi’s DTM race cars, the tailpipe is located on the left flank, just in front of the rear wheel.

Some special elements include a carbon fiber roof, a black honeycomb designed grille, widened fenders, a double blade rear wing and a huge rear diffuser. The interior has also been stripped out, with many of the standard pieces being replaced with either carbon fiber or aluminum. Three custom instruments indicate the oil pressure, boost pressure and electrical system voltage, and red four-point belts secure the driver and passenger.

Sadly, the Audi A1 clubsport quattro is only a one-off and even if built it wouldn’t be coming to the U.S. since the A1 is not sold locally. However, if you want to experience the car, it will be available through the virtual Need for Speed World where it will be available to all players as a free in-game rental car from June 1 to 4.

The Wörthersee Tour 2011 kicks off in Reifnitz, Austria tomorrow.

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