Wow....I wish BMW had the balls to build this thing to take on the likes of exotics like Ferrari 458, Audi R8's, Lexus LF-A, SLR, etc. But a modified version of a NA. V10 from M5' and M6's with mid-engine lay out making close to 575-600hp and sky high rev limiter of 9000 rpms and an F1 like exhaust note that sends shivers down your spine. Now that would be an ultimate driving machine