First, I wanted to say that this has been a most informative dialog. I've learned a lot from this groups positive exchange of knowlege on this topic. This board is a great way to share perspectives.
Second, I wanted to point out that the Acura while offering sexy transfer of power technoadvancements (if there is such a word) still relies on unit body costruction instead of a body on frame constuction like the VX. I'd have to guess that the use of unit body is why that MDX/RDX is biased towards front drive as the hull lacks the torsional rigidity found in body on frame constuction for effectively sending power to the rear except under difficult surface situations when it's required. We all know front drivers tend to understeer due to weight distribution balance issues. Nevertheless, the VX has near neutral weight distribution and the torsional strength to drive the rear wheels most of the time. When it comes to performance driving, like road racing, I don't think there are any teams using solely front drive configurations due to understeer considerations. Just some additional perspective.