i agree that a turbo bmw is a good choice (especially over a ford 5.0L) and yours def scoots, you cant deny that 5.7L-6.0L vs 2.x-3.xL with a turbo sized for the same peak power, the v8 is going to spool like there isnt a turbo on there at all.
im not a peak hp man i guess. im an area under the curve guy. id rather have less whp and alot more torque and a tall gearbox. makes for good manners when you are puttering through town on the way to the highway for a good blast.