At the Worthersee Tour 2015, Audi unveiled the TT Clubsport Turbo Concept, a vehicle that takes its inspiration from the legendary Audi 90 IMSA GTO of the late 1980s. According to the German manufacturer, the vehicle is powered by a 2.5-liter TFSI five-cylinder petrol engine that produces 600 hp (441 kW) and 650 Nm (479.4 lb-ft) of torque.
All that power is transferred via a manual six-speed transmission and the Quattro permanent all-wheel drive system, that can push the vehicle from 0 to 100 km/h (62 mph) in 3.6 seconds, while top speed is 310 km/h (192.6 mph).
Thanks to the electrically driven compressor, the Audi TT Clubsport Turbo Concept is able to cover up to 16 meters (52.5 ft) within the first 2.5 seconds, 6 meters (19.7 ft) more than a comparable car without this innovation.
The electrically powered compressor is able to rev up to maximum rpm rapidly and without any perceptible delay and continues to boost the charge pressure when too little drive energy is left in the exhaust gas for the conventional turbocharger.
Audi says that the compressor is able to boost torque by up to 130 Nm (95.9 lb-ft). What’s more interesting is that the turbocharger takes its energy from a dedicated 48-volt electrical sub-system.
Meanwhile, a compact lithium-ion battery is located in the luggage compartment and stores the energy generated by recuperation when coasting. A DC/DC converter provides the connection to the 12-volt electrical system. As you can see from the photos, the concept gets 20-inch six twin-spoke design wheels that are finished in a two-color look, both in gloss turned finish and matt black.
Behind the wheels we find carbon-fiber ceramic brake disks (370 mm (14.6-inch) in diameter for the front brake disks). When it comes to dimensions, the vehicle is 14 cm (5.5 inch) wider than the technical platform upon which it was based.
The show car is painted in the exterior color Ferro Titanium, features that are opened at front and rear, a manually adjustable rear wing as well as air inlets and a large splitter at the front, side panels and side sill trims and a big diffuser at the rear.
All these add-on parts are made from carbon fiber-reinforced polymer (CFRP). Inside, we find a protective “cage” of ultra-high-strength titanium tubes, lightweight racing bucket seats with four-point harnesses, the well-known digital Audi virtual cockpit, as well as sporty materials such as CFRP and black Alcantara. [source: Audi]