The first units of the new Audi SQ7 TDI – the world’s most powerful diesel SUV they say, will appear on the market from this Summer. With 435hp and 663.8 lb-ft of torque at its disposal, it accelerates from 0 to 62mph in just 4.8 seconds, with fuel consumption around the 32mpg mark. This equates to 18g/km of CO². European customers can order the Audi SQ7 TDI from mid-May.
The 4.0L V8 TDI in the SQ7 has been redeveloped from the ground up. It combines, in Audi’s view, best-in-class performance with low consumption therefore guaranteeing maximum dynamics. An electric powered compressor (EPC) makes its first ever appearance in a production vehicle. This device supports the work of the two turbochargers in the new seven-seater especially at lower revs, assuring agile starting performance. There’s no hint of turbo lag apparently.
The power for the EPC – which peaks at 7 kW – is provided by a 48-volt electrical subsystem. The SQ7 TDI is the first vehicle from Audi to feature this higher-power electrical system. In conjunction with the EPC, this technical solution also paves the way for the high-performance system of electromechanical active roll stabilization.
To meet its high power requirements and short-term energy requirements, there is a separate 48-volt lithium-ion battery in the electrical subsystem beneath the luggage compartment. It has a peak output of up to 13 kilowatts. A DC/DC converter connects the 48-volt and 12-volt electrical subsystems.
The electromechanical active roll stabilization is a new technological solution in this market. It makes controlled, sporty handling possible in such a big car. The car rolls less on bends, say the company, lateral inclination is markedly reduced and the tendency to understeer is kept even better in check. This enables higher lateral acceleration and thus faster cornering.
The Audi SQ7 TDI includes popular equipment options from the Audi Q7 all supplied as standard. They include LED headlights, adaptive air suspension with S-specific settings, a 3-spoke sport steering wheel with multifunction buttons and shift paddles, a larger 22.5 gallon tank, an anti-theft alarm, electrically adjustable heated sport seats in Alcantara and leather, 20-inch wheels, sporty-contoured bumpers and door trim strips, plus brushed aluminium inlays. At UK prices that should equate to about £70,000 or so.
As an option, Audi can also equip the new SQ7 TDI with the advanced dynamic driving package, which comprises three technology modules: quattro with sport differential, all-wheel steering and the new electro-mechanical active roll stabilization. Geoff Maxted