The new V-8 emits a menacing growl, but doesn't quite match up to the raging V-10. On the plus side, the new engine is not only a bit more torquey but also more efficient—by a whopping 25 percent, according to Audi. It’s also much quicker. With launch control engaged, the sprint from 0 to 60 mph takes a mere 3.7 seconds, which is all the more impressive considering the engine’s modest output; the last S6 needed 5.4 seconds to do the same deed. Top speed on the new car is limited to 155 mph, although we’re told the car would be capable of close to 190 if left ungoverned.
This is great news for Audi's upcoming RS6. Not only will the RS6 be much more powerful than the S6, but senior Audi engineers have admitted the previous RS6 was good for little more than straight-line acceleration. To turn the upcoming RS6 into a dance partner the Audi team is going to make the new RS6 more engaging, dynamic, and lighter than the previous generation.
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