[cjackson1906]

I get what the OP is saying, but are the CLS/E 63, RS7 and GTR the best comparisons? Specifically, would the new Alpina B6 GC xDrive be a better comparison of AWD vs. RWD with substantial HP (540) and torque (540) since it will have BMW "DNA" so to speak? Seeing how the Alpina puts down the power AND handles, along with comparing the numbers at high speeds (Alpina supposely will be limited at 198 mph) might provide some good data. I know that the M5 and B6 are different cars, but Alpina seems to do really well when it adds to existing BMW technology. The fun factor of RWD is hard to dispute and discount. Just trying to think about this a little differently, but more knowledgeable people please enlighten me/us...