Background
Who knows what went through the minds of BMW’s chiefs when they decided, after nearly 40 years of having a market-defining compact executive product line, that the 2-door coupé and convertible models no longer belonged and needed their own designation. Well that’s what happened in 2013 and voila - the BMW 4 Series was born the following year.
Just to confuse things further, BMW then introduced a 5-door hatchback, that they called the 4 Series Gran Coupé. If you like, it was a 5-door hatch variant of a 2-door coupé version of a 4-door saloon! Still with us?
So likewise from then for the high performance M editions, the new generation of M3 was offered only in 4-door saloon format and the other hotted-up body styles became the M4. Thankfully so far we’ve all been spared a 5-door M4.
So, the M4 Coupé and Convertible (and the equivalent M3) are powered by BMW’s 3.0-litre straight-six, with two scroll turbochargers, delivering 431PS and 550Nm of torque. If fitted with a 6-speed ZF manual gearbox, the hard-top will accelerate to 62mph in 4.3 seconds or if the 7-speed mechanical dual-clutch transmission is specified, it will get there two-tenths quicker. The drop-top, being heavier due to the folding metal roof, is three-tenths slower but is still well under 5 seconds.
In keeping with its lineage, carbon fibre and plastic composites are used for panels like the roof and the boot lid to lighten the car. It also had a carbon fibre driveshaft until 2019 when it was swapped out to make space for a particulate filter. Although stylistically based on the regular 4 Series, the M4 only shares half of its components.







