Very interesting... Looking forward to this. And I hope Audi works out an "easier" engine with say a biturbo strategy instead of this (It works bloody brilliant now, but how's the durability in 5 years?) rather complicated engine.
+1. The tech in the M550dx sounds seriously complexed, I'm sure they had their reasons for going this route but has this been at the expense of durability.
Hanging the tail out is Vanity
but choosing AWD is Sanity