Teutonic twins: BMW M3 & M4 revealed

BMW has released details of the 'M' derivatives of its 3 Series saloon and 4 Series coupé – the biggest news being a reversion to six-cylinder power, albeit in a twin-turbocharged format...

The optional double-clutch gearbox features a 'smokey burnout' setting

Both cars will be mechanically identical – they'll share the same 3.0-litre, twin-turbo, inline-six engine, which will provide 425bhp and 405lb ft of torque. That not only makes it the most powerful engine ever to be placed in an M3, but also the M divison's smallest-capacity unit since the 2.3-litre of the E30 M3 was retired in 1991. It's also the first time that there will be no M3-badged two-door coupé.

Despite the inevitable move to forced induction, M purists will be relieved to hear that a six-speed manual remains the staple gearbox, although a seven-speed double-clutch Getrag 'box with paddle shifters will be an option – featuring launch control and a specific 'smokey burnout' setting for low-speed hooligan antics.

The M3 saloon and M4 coupé will make their official production debuts at the Detroit Motor Show in January, and will go on sale in the spring.

Plenty of modern and classic BMW M3s can be found in the Classic Driver Market.