Originally posted by Eternal RSXness
Isn't Audi's high performance the RS? Quattro is just it's 4WD system name.
The sad thing about BMW M, is that all the wannabe's are just that: wannabe's. The closest thing to BMW M is probably Honda Type-R. Type-S, is nice and all, but as long as slushboxes can be Type-S, they aren't M.
Now... we all know that the X5 4.4i can kick the snot out of ML55 AMG. BMW needs to bring out the big guns with the X5M to show the Cayenne who's the boss. 
While quattro is the name of their awd system, quattro GmbH is wholly owned subsidiary, much like AMG.
The Audi RS 6 is an independent model that has been created by quattro GmbH and developed in conjunction with AUDI AG. It is being built jointly at Neckarsulm by the Audi plant and quattro GmbH. The RS 6 is assembled and finished at quattro GmbH's production facilities, at the rate of no more than a handful of cars each day, in the best handicraft tradition. This approach assures supreme product quality and has already proven notably successful for assembly of the RS 4, of which 6030 were built between September 1999 and July 2001.
Kinda dumb that they named them after their awd system, but they did. and RS is the tag that the cars that quattro GmbH will modify wil get.
And yeah, Type R is the cloest thing to M. And the top of the line BMW SUV is the X5 4.6is, thats the one that kills the ML55AMG. As of now, BMW doesnt see the X5 fit to recieve the M treatment, but it might in a future generation.
Also, notice how BMW is the only one whos stayed N/A at this point? Mercedes and jaguar use superchragers, and Audi uses two turbos. Go BMW :naughty: