Audi has unveiled the first S model to join its Q range with the 435PS SQ7 TDI.

Described by Audi as the world’s first series production car combining turbocharging with an electrically powered compressor, the new model ‘consigning turbo lag to history’. 

The SQ7 TDI also features electromechanical active roll stabilisation for ‘significantly’ reduced body roll. Powered by a redesigned V8 BiTDI engine that now develops 435 PS and 900 Nm (663.8 lb-ft) of torque, the electrically powered compressor (EPC) is placed in the air path downstream of the intercooler, close to the engine. Because the EPC does not require any exhaust-gas energy to develop boost, it can be used at any time, thus making it the solution for the traditional weaknesses of the classic exhaust-gas turbocharger, dispensing with any sign of turbo lag. The 0-62 sprint takes just 4.8 seconds while top speed is limited to 155mph. In the New European Driving Cycle (NEDC), the SQ7 TDI returns up to 38.2 mpg combined. This corresponds to CO2 emissions of 194 g/km. 

"Following the launch of the successful SQ5, we are now also applying the concept of a diesel-engined S model to the Q7 model line. So equipped, the SQ7 TDI with a V8 TDI engine achieves the consumption figures of a six-cylinder. The new technology solution of the electric powered compressor in the SQ7 TDI is a world first in the competitive environment, with which Audi once again underscores its claim Vorsprung durch Technik,” said Dr. Stefan Knirsch, Member of the Board of Management of AUDI AG for Technical Development.

The 4.0 TDI in the Audi SQ7 TDI in mated to a redesigned eight-speed tiptronic which changes gears quickly and efficiently, and at high speeds allows coasting at idle. A self-locking centre differential is the heart of the quattro permanent all-wheel drive system. It is described as compact, lightweight and interacts ‘very precisely’ with the suspension control system.

Electromechanical power steering, the Audi drive select driving dynamics system, Audi pre sense city, powered tailgate and adaptive air suspension with S-specific tuning are standard. Lightweight carbon fibre-ceramic discs will also become optionally available shortly after the market launch. Audi offers the SUV with 20-inch wheels on 285/45 tyres, with options up to 22 inches from quattro GmbH available soon after UK ordering opens.

Design wise, Audi DNA is clear with the sculpted Singleframe radiator grille, distinctively highlighted wheels and flared quattro-style blisters. The SQ7 TDI has a new radiator grille with an S-specific design at the bumpers and plenty of S body styling. Other distinguishing features are the side air inlets, the mirror housings and door inlays in standard aluminium. The exhaust system terminates in four rectangular tailpipes.

Passengers in the SQ7 TDI experience the largest interior in the segment, according to Audi. The second row has a three-section backrest with segments that can be folded down separately, while the final third row folds up and down electrically.

With its 12.3-inch display, the Audi virtual cockpit presents logically structured information in brilliant graphics. Driver ergonomics are excellent, and operation is intuitive. The driver chooses the display mode via the multifunction steering wheel. A head-up display is also available as an option.

The standard MMI navigation plus with MMI all-in-touch includes a large glass surface on the center tunnel console that provides the finger with haptic feedback after each click. The MMI logic allows for intuitive system operation and also understands terms from everyday speech.

Pricing has yet to be announced.