New BMW M3 to feature rear steering, retain S55 3.0TT inline six – report

Brett Davis

BMW is busy developing the next-gen, ‘G20’ 3 Series which is set to debut at the Paris motor show in October. But now we’re starting to hear details of the next-gen M3, which is set to be lighter, more powerful and more advanced than ever before.

The next 3 Series will ride on BMW’s CLAR platform which has already made its way underpinning the 7 Series, 5 Series, and even the new G03 X3 SUV. With this platform BMW M will likely inject plenty of carbon fibre in the construction of the M3 and M4 versions.

According to a recent Autocar report, the next M3 will weigh less than the 1585kg M3 CS currently on sale. The CS (available in M3 sedan and M4 coupe form) is a partially stripped out track-ready version with many carbon fibre parts. Given that the G20 3 Series is expected to grown in overall size, keeping the weight as low as the current models will be an impressive first step.

Under the bonnet the 2020 M3 will apparently retain the current ‘S55’ 3.0-litre twin-turbo inline six engine from the current F80 M3. However, power could be turned up to around the 347kW mark. This would be slightly higher than the current M3 CS’s 338kW output.

From there it’s understood the next M3 will be offered with a six-speed manual like today’s car, but switch to an eight-speed sports automatic with a torque convertor as an option. Dropping the current dual-clutch seven-speed auto could save weight, while today’s transmission technologies provide similarly quick gear changes. A launch control system is sure to maintain swift acceleration times.

While all-wheel drive has essentially been ruled out for weight cost reasons, despite its bigger brother, the M5, featuring a beaut new switchable RWD/AWD system, BMW may introduce an active rear-wheel steering mechanism for the M3. Many high-end sports cars are starting to adopt this technology, such as the Porsche 911 GT3 and Lamborghini Aventador S.

With rear-axle steering the M3 could become a very nimble product, like its early predecessors. It’s believed the rear steering won’t be offered in the regular 3 Series models. Take a look at the video below, from autoevolution, for a quick look at the regular 3 Series in prototype form.

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