Audi S7 vs Mercedes-AMG S63

What's the difference?

If you want something large, fast and comfortable, no one does it better than the Germans, and the latest entrant to the market is Audi’s all-new S7 Sportback.

Using the uber-stylish second-generation A7 as a basis, the new S7 Sportback scores cutting-edge technology and premium appointments befitting a large luxury sedan, but it’s often what’s under the bonnet that will draw buyers in.

This new S7 replaces the old version’s 4.0-litre twin-turbo V8 for a 2.9-litre twin-turbo petrol V6 but, don’t fear, as having fewer cylinders has not dulled its performance or appeal.

As a whole though, does the new Audi S7 Sportback deliver a winning blow?

Ever since the middle of the 1990s, I've been captivated by the Mercedes-Benz S Class. It used to be known as Sonderklasse - special class - and teenage me certainly thought it was. The one that caught my attention was the W140. A huge, two-tonne beast when that sort of mass was rare, it was loaded with amazingness and owned the road.

Part of its unique appeal was that that it was properly ugly. When it hove into view it was like a battleship entering Sydney Harbour. And it used almost as much fuel, with the V12 on board.

Over the years, genuine style has invaded the S-Class and today I found myself, for the first time, in an unusually pretty pair of S Classes - the S560 and S63 Coupes. And, astonishingly, it's the first time I've ever driven an S-Class. So with all that baggage I've built up over the years, they had a lot to live up to.