We knew that Audi was working on a more spirited version of its "new luxury" A8 flagship sedan and now we have some fresh spy photos as the Germans put the final touches on the S8 before its official premiere later this year, possibly as early as the Frankfurt Motor Show in September.
The big news is that VW Group is hushing in a new generation of engines for its performance orientated models and the 2012 Audi S8 is no exception.
The new sporty limousine will drop the previous model's naturally aspirated 5.2-liter V10, which was shared with Lamborghini, in favor of a newly developed 4.0-liter turbocharged V8.
