This looks a lot like the X5/6M engine with the turbochargers in the Vee of the engine.
I wouldn't be surprised if they end up with basically a 6 cyl version of that engine with computer controlled sequential turbos.
BMW has been really anal about minimizing turbo lag to maintain the responsiveness of the M engines. Sounds like they are doing some interesting work to that end!
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2009 Spacegrau 335i
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