The new Q7 is the first car to use the VW Group's 'MLB Evo' platform components.
It's got aluminium suspension, a body that's largely aluminium too, and a whole lot of other weight-saving in the powertrain, cooling, exhaust, electrics, seats, whatever. Makes you wonder why it was so chunky before, but anyway they have taken more than 300kg out of it. That means it's the lightest big seven-seat SUV.