The Audi S8 has been caught in the German Alps with almost no disguise. A must see!
So what do we know about the S8? Well, for one it will make do with two less cylinders. The V10 will exit stage right and be replaced by the upcoming 4.0 TFSI that will see duty in the S8, S6, S7, RS 6, RS 7 and Bentley Continental series. Leaked Russian ETKA screen captures confirm that in S8 tune the 4.0T will be good for 518 hp. Pair that with the lighter weight of the S8 and we’re guessing about 20% better fuel efficiency.