I don't know, put some things like brake energy regeneration and other fuel saving tech on it, increase the boost pressure a bit, maybe bore out the engine a bit (it's 'only' 5,5 liter, for a V12. The BMW already has a 6.0) and you make 550 instead of 517 hp and save maybe even on fuel....
^Last time i checked there was lots of blown up M engines than AMG so i guess the strongest and best reliable goes to MB....but fine anyway as u think Klier
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M3 E46 had blown up engines the first year but the problem was later solved. No other M engines has suffer from blown up engines like the M3 E46. So you two fanboys ,shut up please.
if MB releases a bi turbo V8 5.something then they are really out of touch with the times,
the new modus operandi is downsizing, they'd better be prepping a turbo 4.something instead of such a huge V8, unless they decided to faze out the V12 in favor of a cheaper to build bored out version of the mainstream V8

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The forward-thinking flagship is now less controversial and—surprise—more user-friendly.
While the new fifth-generation 7-series continues to be BMW’s technological pacesetter—it gets even more high-tech features such as variable suspension damping, rear-wheel steering, night vision with pedestrian detection, and side-view cameras—the real buzz at its introduction was BMW’s backpedaling away from some of the previous big car’s, uh, “breakthroughs.”
Last time around, for the 2002 model, BMW thoroughly shuffled the ergonomics of the 7-series, switching the shifter from the center console to a newfangled lever on the steering column, as well as moving the seat controls to the center console and programming them as some sort of demented test of logic. Both items have now been returned to their previous locations.
Furthermore, the most controversial piece of technology, iDrive, with its multifunction central control knob that has been copied to varying degrees by Mercedes, Audi, and Honda, has been completely overhauled. In fact, continuing to call it iDrive is almost an insult to its vastly improved control strategy. There’s no more convoluted nudging of the knob in one of eight directions to choose a submenu; now you scroll straightforwardly through a list and click to select. Shortcut buttons surrounding the knob ease the acclimation process, and the climate controls have been removed from iDrive altogether.
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2009 BMW 750i / 750Li / 7-series - Second Drive/Luxury Sedans/Car Shopping/Hot Lists/Reviews/Car and Driver - Car And Driver
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