2017 BMW M550i the fastest 5-series...or maybe not

Source: http://www.bmw.com/com/en/newvehicles/5series/sedan/2016/showroom/m_performance.html

With the world going bonkers over the launching of the seventh-generation G30 5-series, BMW decides to spice things up-by previewing the performance figure of the upcoming one-rung-below performance variant of the 5-series, the 2017 M550i. It turns out to be the F10 M5 killer.

Its 4.4 litre twin turbo V8 (the same engine found on the current F10 M5) churns out 462 horsepower and 479 lb-ft of torque to the eight speed automatic, good for 0-100 kph time of 4.0 seconds. That is 0.4 seconds faster than the current F10 M5 (4.4 seconds). This is in spite the fact the older M5 generates more power than the M550i. This could be due to the fact the M550i has the traction benefits of the proprietary xDrive all-wheel drive, while the F10 M5 is driven solely by the rear wheels.

Despite this, it can be assured the 2017 M550i would not be wearing the 'fastest 5-series' crown for long, as the upcoming F90 M5 is set to make more power (around over 600 horses), along with the fitment of xDrive all-wheel drive and lightning fast dual clutch transmission.

The G30 generation 5-series sports changes to the exterior to differentiate itself from the F10 5-series, such as the front headlights extending to the kidney grille a'la the current F30 generation 3-series, and the 'hockey stick' door recess a'la the new G11/G12 generation 7-series (good for going to hockey match??).