That’s because the M Performance model is quicker than the F10 M5
If you want your BMW 5 Series G30 to be very quick, the M550i xDrive is your best option — at least until the new M5 comes along.
While not a full-blown BMW M car, the 2017 M550i xDrive is seriously fast. It's quicker even that the current M5, as it covers the 0 to 100 km/h sprint in just 4.0 seconds. That's four-tenths of a second faster than the F10 M5, making all BMW fans daydream about the upcoming G30 M5.
Until the new M5's arrival, the M550i xDrive is the range-topping model of the G30 5 Series, and BMW's extensive photo gallery reminds us of that.
Powered by a twin-turbocharged 4.4-liter V8, the M550i xDrive is the first 5 Series M Performance model to feature a gasoline engine under its hood. Equipped with two twin-scroll turbochargers, it delivers 456 hp (462 PS) at 5,500 rpm and 650 Nm (479 lb-ft) of torque from just 1,800 rpm.
Equipped with an eight-speed Steptronic Sport transmission tuned by M Performance that sends power to all four wheels via the rear-biased xDrive system, the M550i xDrive can reach an electronically-limited top speed of 250 km/h (155 mph).
The car also features the 10-mm lower adaptive M Sport suspension, power steering with M-specific responses in the Sport and Sport+ mode, and M Sport brakes.
Styling-wise, the M550i xDrive is rather understated, but that's because it needs to leave some space for the upcoming M5. Still, it boasts an M aero kit that includes an M rear spoiler with Gurney flap on the boot lid, Cerium Grey metallic finish on various exterior elements, M sports exhaust system in black chrome, dedicated 19-inch alloy wheels, and a sporty-flavored interior kitted with many M goodies.