What is it?
This is Audi's range-topping Q7 V12 TDI, driven in the UK for the first time.
Powered by a mammoth 6.0-litre V12 diesel engine, producing 493bhp and a truly colossal 737lb ft of torque, the V12 is the Q7 for those who struggle with the concept of self-constraint and have very deep pockets.
At just shy of six figures, the 12-cylinder Q7 is nearly twice the price of any other model.
What's it like?
A guilty pleasure. Even the most humble of Q7s is a pretty conspicuous way to travel, but with 20in wheels, daylight running lights, V12 badges, wheel arch extensions and a chrome plated grille, this particular Q7 is about as conspicuous as it gets.
And yet I have to admit that on the road, the big Q7 is remarkably satisfying. Far from being a party piece powerplant shoehorned into an unlikely bodyshell, the V12 TDI is impressively well resolved; not only does it start and rev smoothly, but it also does so with a not-unpleasant voice.
Moreover, the Q7 is happy trundling along at slow speeds without feeling like it's being constrainted. And then when you do want to add a little speed, the throttle progression is such that you can do so accurately.