As easy as it is to make FI power, I would've loved to have seen a N/A progression of the S85, maybe punched out to 5.5L keeping the same redline and usable powerband, I am a dyed in the wool 4v N/A lover however. Same logic applies to my ideal S65 replacement, a few more inches while keeping the revs.
With that being said there is no denying TT power/torque, but I see nothing special/M about a shared 4.4L TT V8 (5 series, 7 series, X5, X6, M5, M6) powerplant, even if it does make ~600HP in stock form.
I will also admit that if BMW gave me the 6.0L DI 4v TT V12 from the 760 I would take it