Audi’s premium SUV has become a whole lot more sensible with the introduction of new V6 turbodiesel power.The Q7 is the latest Audi to benefit from the an advanced version of the company’s 3.0 TDI engine.This new engine is a sophisticated power unit managing to combine competitive outputs and frugal consumption properties.For its Q7 application the new-grade V6 turbodiesel produces 150kW and 450Nm - down from the current V6 TDI's 176kW and 550Nm. Drive is apportioned to all four wheels via a new eight-speed automatic transmission, which debuted in the latest A8. With the new engine boasting a (very) high pressure common-rail injection system (2 000bar) and start-stop technology, efficiency is its raison d'etre.Audi claims its Q7 3.0 TDI should average 7.2l/100km, a remarkable figure for an SUV sliding the scale towards the wrong side of 2t.Performance remains respectable, if not exactly swift. The benchmark 0-100km/h sprint time is completed in 9.1 sec, with the Q7 3.0 TDI topping out at 202km/h. European retail of the Q7 3.0 TDI commences this week. At this stage the Q7 3.0 TDI is not being considered for local introduction.