What is considered the most outrageous M-car in the range, even with the ludicrous V12-powered M760Li - the M6 is Bavaria's answer to a bristling muscle car. The M6 is available in three guises, much the same way the 6 Series is - as a coupé, convertible and a four-door Gran Coupé. But that is where the similarities end.
The 6 Series is similar in many ways to the Mercedes-Benz S-Class Coupé as a competent grand tourer, while the M6 is cut from the same cloth as the aggressive brute that Mercedes-AMG devised in the S63 and S65 Coupé - that is to say brutally fast.
Getting to know the BMW M6
The standard M6 already has 552bhp, and like with most M cars there is a Competition Package that can be appended boosting the power to 591bhp. To put that in perspective, it remains on the coat tails of the 4.0-litre V8 S63 but finds itself 30bhp behind the outrageous twin-turbo V12 S65. In 2015, BMW facelifted the 6 Series with changes made to the bumpers, air intakes and headlights, with the M6 also inheriting those tweaks. However, there was one bespoke change BMW made to the M6's Competition Pack too, and let’s face it, who doesn’t like a horsepower number that starts with a six?
That’s not all: this new Competition Package is more… competitiony. Springs and dampers have been upgraded, as have anti-roll bars. The electronically controlled limited-slip M-differential gets its own ECU, the stability control programme has its own tune, as does the steering, while there’s an Akrapovic titanium exhaust system.
When I say the suspension is ‘upgraded’, mind, what I mean is ‘stiffer’. The dampers are still adaptive, so you do get some say in how rigid they are. The chassis, like the steering and the engine/transmission response, can be put in Comfort, Sport or Sport+ - individually, or together, as you prefer.
For those of you keen to keep the M6 standard, you won't be disappointed with the 552bhp it produces, not to mention its extensive equipment list. There is double-wishbone suspension at the front, 19in alloy wheels, an M-Performance aerodynamically tuned bodykit, a quad-pipe exhaust system and plenty of M6 designation as standard on the outside. Inside, there is a Merino leather upholstery, electrically adjustable front sports seats, a wifi hotspot, and a Harman and Kardon stereo system, while like the rest of the BMW range, the M6 gets iDrive with sat nav, DAB, Bluetooth and USB connectivity and the addition of a 10.2in screen.