BMW’s M3 Competition is a fairly unhinged four-door straight out of the box, thanks to its 375kW/650Nm turbocharged inline six and a wonderful chassis underneath.
But, there will always be BMW customers that want a little more. And, while those customers continue to exist, BMW specialist tuning firm AC Schnitzer will continue to churn out its go-faster spin things.
The German group has just unveiled its new suite of changes for the G80, ranging from performance additives to cosmetic tweaks.
![](https://www.autocar.co.nz/wp-content/uploads/2021/10/acschnitzer2-1024x578.jpg)
Under the bonnet, output has grown from 375kW/650Nm to a crazed 434kW/750Nm. This puts the four-door sedan in the same stratosphere of on-paper chops as the 441kW/620Nm McLaren 600LT.
AC Schnitzer hasn’t quoted a 0-100km/h time, but it’s safe to assume it’ll be quicker than the standard model’s 3.9 seconds.
![](https://www.autocar.co.nz/wp-content/uploads/2021/10/acschnitzer4-1024x684.jpg)
Chances are you’ll hear the new Beemer before you see it, given that AC has given it a new exhaust system that boasts a better engine note and improved flow. Once you’ll see it, you’ll note AC Schnitzer’s familiar visual twists; cannards, splits, and wings included.
As tempting as it is to label the new M3 as a pure track machine, the reality is a little more subtle. AC Schnitzer says it’s adjustable RS coilovers and spring kit is designed to work on both road and track, with “good-natured load change reactions and gentle understeer at the limits.”
![](https://www.autocar.co.nz/wp-content/uploads/2021/10/acschnitzer5-1024x683.jpg)
There is some nerdy anorak stuff here, mind you. The wings, for example, are all fully functional. AC Schnitzer boasts that the front splitter produces 40kg of downforce at 200km/h, and the rear wing (with its Gurney flap) adds another 70kg.
Other notable changes include a new steering wheel (featuring an adorable little AC Schnitzer at 12 o’clock), larger paddle shifters, sport pedals, and lightweight wheels with a staggered offset.