Simply due to their size and presence, not to mention the tastes of their buyers, luxury flagships don't need to be flashy. In regular A8 guise, Audi's largest sedan is best described as understated, almost to a fault when compared with the svelte new Mercedes-Benz S-Class or the BMW 7 Series that, despite complaints about its styling, sells quite well. Obviously, pumping things up a bit with a few select visual enhancements couldn't hurt, and that's just what the 2007 S8 does.