There's a lot we already know about the new 2021 BMW M3 Sedanand M4 Coupe. They will debut this year in mid-September with improved driving dynamics and a massive performance increase, while, to please purists, the base M3 and M4 will be equipped with a manual transmission. However, enthusiasts have been complaining for years that manual M3s and M4s feature automatic rev-matching, which automatically blips the throttle during downshifts to match the engine revs to the upcoming gear and maintain speed.

Many drivers enjoy doing this manually using the tried and tested 'heel-and-toe' technique and prefer to disable automatic rev-matching.

Frustratingly, however, auto rev-matching can only be disabled in the current BMW M3 and M4 when the traction control and stability control is also switched off, which could be dangerous on the road.

According to BMW Blog, BMW has finally responded to this criticism. Mercifully, the auto-rev match system can be turned off in the new 2021 BMW M3 and M4 without having to disable the traction and stability control. It's a small but very welcome change that will make them true driver's cars, allowing enthusiasts to heel-and-toe on the road safely and enjoy the satisfaction of manually matching the revs without any interference.

You can even watch a video of the new BMW M4 being thrashed around the track, where you can clearly see the driver using the heel-and-toe technique to match the revs.

When the BMW M3 and M4 go on sale, both cars will be available with two performance levels, with power being sourced from the same twin-turbocharged 3.0-liter straight-six engine used in the BMW X3 M and X4 M. The base model will produce 480 horsepower, which will be sent to the rear wheels through a six-speed manual transmission, while the Competition version will have an increased output of 510 hp and an eight-speed automatic transmission. Rear-wheel drive will only be available initially, but an all-wheel-drive system will be available for the new M3 and M4 Competition later.