If the S6 is a V10 I am SERIOUSLY considering one. At first I thought the C6 looked like ass but now...I like it!

Most sources say 5L like in the Gallardo. But a few sources say 5.2L. Hopefully, the V10 in the new S6 will produce 450 or 460 hp and 376 lbs/ft of torque. The new RS 6 is also supposed to have the V10 with FSI, most likely 5.5L. And most likely producing 560 hp and 413 lbs/ft of torque. Given the weight of the new RS 6, 500 hp won't be enough to compete with the new M5, E55 AMG and CLS55 AMG. 560 hp should be sufficient. And 413 lbs/ft of torque should be sufficient, as long as it is available in a range of 1,000 RPM. And as long as the torque is extremely useable, especially down low. The more I see the C6 A6, the more I like it, even if it is only in pictures and not in person.

Then what engine will the C6 S6 and RS 6 have? A V8? Will the engine be normally aspirated? Or, will the engine have twin turbos or a supercharger? What will the displacement of the engine be?