AUDI is no stranger to strapping a couple of turbochargers onto a petrol engine to extract a bit more mumbo - but a diesel?

More than a decade ago, a twin-blower 2.7-litre V6 petrol powered Audi’s flagship RS4 Avant, producing what was considered at the time a pretty quick wagon with a decent serve of 280kW of power and 440Nm of torque.

Cast through the modern-day range sporting the special silver wing mirrors, and the twin-turbo theme carries through the petrol V8 range on anything but the S6 and S7 models, and the more performance-honed RS4 and RS5 models.

Now Audi has its first twin-turbo diesel engine, too, and the German luxury brand chosen the mid-sized Q5 soft-roader as its first recipient.

The move has given the Q5 – Audi’s best-selling model – so much of a performance lift, it too now has to wear an “S” in front of its name.

It’s a blast, and a well-equipped one that though, though unfortunately it’s now too late to take advantage of an even sharper introductory offer.

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