Audi prepared a nice surprise for this year’s Worthersee Tour, called the Audi A1 Clubsport Quattro, an extreme version based on the automaker’s smallest hatch which celebrates 30 years of the Austrian festival.
Fitted with a heavily modified, turbocharger and direct injected 2.5-litre gasoline engine under its bonnet, the Audi A1 Clubsport Quattro develops no less than 503 HP (370 kW) and 660 Nm (486 lb-ft) of torque delivered to all four wheels via a 6-speed manual transmission.
Apart from the new turbocharger, some of the other tuned elements include the intercooler, admission tract and the
exhaust line and as a result the Audi A1 Clubsport Quattro (which weights 1,390 Kg / 3,064 lb) sprints from nought to 62 mph (0 to 100 Km/h) in 3.7 seconds (0 to 124 mph / 0 to 200 Km/h in 10.9 seconds) and reaches a limited speed of 155 mph (250 Km/h).  
The car’s impressive dynamic abilities are reflected at the exterior through a series of add-ons and accents which include a high gloss black roof made from carbon fiber-reinforced polymer
(CFRP), a modified front spoiler with large air intakes featuring carbon struts, a single frame radiator with a honeycomb pattern as well as new side skirts, a vented hood and wider fenders.
At the rear the Audi A1 Clubsport Quattro features a double-wing roof spoiler, darkened taillights and a large diffuser, plus the car rolls on uniquely styled 19 inch alloys wheels wrapped in 255/30 low profile tires.  
Behind these turbine design alloys Audi mounted large, ventilated brakes, with 6-piston calipers and carbon
fiber-ceramic discs at the front and steel discs at the rear. The car also rides on a adjustable coilover suspension, and in order to make it body stiffer, the rear seat has been replaced with a large crossbar.

Source: Audi