Does it really matter?
Recently there have been lots of threads about performance comparisons, especially with Audi. Personally, I don't care if the M3 will be 0.1s slower or faster than an RS4. I buy a car because I like the looks and I like driving it, not because of some theoretical performance figures.
The M3 will be fast. And it will be fun to track it as well. That's all I need to know.
Anyone else tired of "Will it be faster than my neighbor's Xyz?" ?