Live from the launch: Feeling smooth in a Q7

So accomplished was the TT's new 2.0-litre petrol engine that it was hard not to feel a twinge of disappointment climbing into a gargantuan Q7 diesel, but here too Audi have succeeded – the revised 3.0-litre TDI is silky smooth and completely unfazed by the sheer bulk of the SUV.

Audi had redeveloped the engine from scratch, and a plethora of changes means it has shed around 25kg in weight over its predecessor. Ingolstadt's finest were keen to emphasise how much torque could be accessed at the bottom of the rev range now they've dredged an impressive 406lb ft from the powerplant.