Epacy, actually it's not a retaliation at all. I'd actually like to get the word out about the oils that Renewable Lubrications make. Nothing I know of touches them in protecting high performance engines.
As an aside, I actually think M3's are well designed cars, both old and new. This kind of competition between BMW and Audi are good for the industry and us enthusiasts. I have no doubt that the new M3 will be a tad faster than the RS4. It better be, considering the additional 10% driveline loss of the Quattro system.