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2018 BMW 3 AND 4-SERIES FORUMS General G80 M3 Sedan Forum (2019+) Autocar rumors: G80 M3 may get active rear steering, 465hp, be lighter than F80 M3 CS

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      06-28-2018, 11:26 PM   #1
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Autocar rumors: G80 M3 may get active rear steering, 465hp, be lighter than F80 M3 CS

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Next-generation rival to Mercedes-AMG C63 will be lighter and more powerful than today's F80 model

BMW is considering giving its next-generation M3 an active rear-wheel steering system to enhance agility and boost high-speed stability.

The car, now testing on public roads in development form and due to go on sale in 2020, would inherit the active technology from the 5 Series and 7 Series. If the hardware does make the cut and is fitted to the super-saloon, the M3 would be the only car in the upcoming 3 Series range (due later this year) to feature it.

BMW's upcoming Mercedes-AMG C63 rival can use the active steering technology because it's built on BMWs latest CLAR structure. This platform uses more aluminium and high-strength steel to save weight and improve chassis rigidity.

CLAR already underpins the 5 Series and 7 Series, as well as M division models, and in the M3 it will be accompanied by extra carbonfibre parts, the largest of which will be an all-carbon roof. BMW has ruled out using a carbon core, like in the 7 Series, in the next 3 Series models, due to the complexity of the production process and significantly higher demand for the smaller saloon. But the new car is still pipped to weigh less than the recently revealed 1585kg M3 CS.

The use of more exotic materials will enable the weight loss despite a small growth for the M3, with an expected 20mm growth in wheelbase and 60mm expansion in total length. It's understood that BMW isn't interested in offering a part-time four-wheel-drive system like the one used on the new M5, largely due to the weight penalty it would bring.

Power will be sent rearwards from an extensively updated version of BMWs twin-scroll turbocharged 3.0-litre straight-six engine. The M3 CS, the run-out version of today's F80 M3, produces 454bhp, but a figure of 465bhp is predicted for the standard version of the next M3. While not confirmed, part of the performance increase could come from the use of a water injection system like the one employed by the M4 GTS, enabling reduced cylinder temperatures for more efficient running. This suggestion is backed by comments from Bosch, the company that developed the system. It revealed to Autocar that the technology would be featured on more models from 2019. However, packaging challenges brought by the requirement for a water tank may prevent its use.

Comments from company vice-president Dirk Hacker revealed that BMW is investigating using electrification, likely in the form of gearbox-mounted electric motors, in M models to boost torque and reduce emissions. But insiders have told Autocar that the M3 will retain a pure combustion engine system in a bid to save weight and prevent costs from spiralling. The cars petrol powerplant will therefore be the only source of drive through a standard-fit six-speed manual gearbox or optional eight-speed automatic. The latter will enable the best performance figures, thanks to an electronic launch control system.

Our previous sighting of a test car for the BMW M3 gave away little as to how the car will look, with the test lights fitted to the car not representative of the LED lights due for the production model. The only giveaways that this is an M3 test car are the large brake rotors and quad-tip exhaust system. The overall shape is familiar and suggests that the 2020 M3 will evolve the look of the current car in a similar vein to the latest 5 Series and M5 models compared with their predecessors. There will also be big improvements to aerodynamic efficiency, with the final design heavily influenced by wind tunnel research.

Along with the reduced wind noise that this more slippery shape will afford, the cars stiffer CLAR underpinnings will reduce the amount of vibration transmitted through the chassis and into the car to enhance overall refinement. BMW is also expected to dial back the spring rates of the regular 3 Series models in order to make each model more supple over bumps - a response to the more comfortable set-up used by Mercedes-Benz C-Class. The more rigid BMW structure may also allow M division engineers to give the M3 a more compliant ride in its most comfortable mode without hampering the cars overall dynamic ability, making it a better all-rounder and potentially more forgiving in low-grip scenarios.

Inside, the next M3 will follow the new M5's footsteps and swap its dashtop infotainment screen for one thats more tidily integrated into the dashboard. The iDrive system is expected to retain a rotary control knob because it has been praised for its ease of use in current cars. The M3 will also gain significantly more advanced driver assist features, but former sales and marketing boss Ian Robertson has hinted to Autocar that most BMW models will steer clear of the full autonomous hardware suites to be used on i5 and i7 due from 2021. M models, in particular, will still possess a very driver-centric character.

Beneath the M3, the most significant M model in terms of sales, BMWs best engineers will also be called on to work on a range of M division-fettled cars. These will include a rear-wheel-drive M340i M Performance model that will feature a 360bhp version of BMWs inline six-cylinder engine. There will also be a four-wheel-drive M340d xDrive M Performance car, which will be equipped with a 320bhp version of the companys twin-turbocharged 3.0-litre inline six-cylinder diesel engine.

The M3 will continue to form the basis for the technically identical M4 coup, while the aforementioned M-worked 3 Series models will lend their hardware to a two-door M440i M Performance coup and M440d M Performance coup. These models are also due to arrive in showrooms in 2020 and are part of a 26-model onslaught of M division-tuned cars that aims to more extensively rival the growing ranges of Mercedes-AMG and Audi Sport.
https://www.autocar.co.uk/car-news/n...p-super-saloon






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      06-29-2018, 12:04 PM   #2
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Quote:
Originally Posted by supra93 View Post

The use of more exotic materials will enable the weight loss despite a small growth for the M3, with an expected 20mm growth in wheelbase and 60mm expansion in total length. It's understood that BMW isn't interested in offering a part-time four-wheel-drive system like the one used on the new M5, largely due to the weight penalty it would bring.
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As long as 3-pedals are an option, I will exercise my right to suffer the handicap and indignity of slower shifts and reaction times.
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      06-29-2018, 12:04 PM   #3
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Quote:
Originally Posted by supra93 View Post

The use of more exotic materials will enable the weight loss despite a small growth for the M3, with an expected 20mm growth in wheelbase and 60mm expansion in total length. It's understood that BMW isn't interested in offering a part-time four-wheel-drive system like the one used on the new M5, largely due to the weight penalty it would bring.
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As long as 3-pedals are an option, I will exercise my right to suffer the handicap and indignity of slower shifts and reaction times.
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      06-29-2018, 01:43 PM   #4
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Manual transmission, rear wheel drive, rear wheel steering and lighter than F80...so far so good.
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      06-29-2018, 01:44 PM   #5
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Keep the costs down and surprise us for once and make a zero option V8 with no nannies, MT and an amazing exhaust.
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      06-29-2018, 01:47 PM   #6
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I read manual 6MT. Done deal...
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      06-29-2018, 01:49 PM   #7
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MT and full Auto huh...

RIP DCT. F80 seems to be the last with the M-DCT
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      06-29-2018, 01:49 PM   #8
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Keep the costs down and surprise us for once and make a zero option V8 with no nannies, MT and an amazing exhaust.
Don't hold your breath on the V8 chief
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      06-29-2018, 01:52 PM   #9
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Quote:
Originally Posted by Habber View Post
Keep the costs down and surprise us for once and make a zero option V8 with no nannies, MT and an amazing exhaust.
You mean an E9X M3?
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      06-29-2018, 01:54 PM   #10
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Manual????? Yes! See the DCT Vs Manual I'll entertain. But I'm sorry auto vs manual it's not even close. 6MT all day. Keep your track figures and 0-60 times to yourself no one cares. I'm actually excited for this car. I think if bmw does something the noise of the s58 then it'll be a perfect package.
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      06-29-2018, 01:55 PM   #11
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Originally Posted by Arcades View Post
MT and full Auto huh...

RIP DCT. F80 seems to be the last with the M-DCT
The new auto transmissions are exceptional.
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      06-29-2018, 01:55 PM   #12
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MT, all I needed to see
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      06-29-2018, 01:56 PM   #13
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Big and wide but light. Seems good on paper.
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      06-29-2018, 01:57 PM   #14
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Quote:
Originally Posted by Habber View Post
Keep the costs down and surprise us for once and make a zero option V8 with no nannies, MT and an amazing exhaust.
No. Just make the engine sound good. Go buy a MB if you want a v8
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      06-29-2018, 02:01 PM   #15
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Quote:
Originally Posted by supra93 View Post
BMW is also expected to dial back the spring rates of the regular 3 Series models in order to make each model more supple over bumps - a response to the more comfortable set-up used by Mercedes-Benz C-Class. The more rigid BMW structure may also allow M division engineers to give the M3 a more compliant ride in its most comfortable mode without hampering the cars overall dynamic ability, making it a better all-rounder and potentially more forgiving in low-grip scenarios.
This isn't going in the right direction. Is this going to be a BMW or Lexus?
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      06-29-2018, 02:02 PM   #16
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The current rumors are that the next gen C63 AMG is going to be hybrid-electric. It'll be heavier than the G80 M3 for sure though. I just hope that the G80 M3 is going to use a reworked version of the S58 and will sound nothing like the S55.
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      06-29-2018, 02:03 PM   #17
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Seems like Bmw is foregoing 'greener' pastures for straight up gas combustion. And no awd. Glad to see the m3 remain a proper sports sedan with a clutch and rwd. How much longer can Bmw keep this up? If it weighs under the cs, they are really taking it to all the competition as I can't imagine Audi, Merc, or Alfa being able to best those numbers.
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      06-29-2018, 02:08 PM   #18
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Quote:
Originally Posted by Habber View Post
Keep the costs down and surprise us for once and make a zero option V8 with no nannies, MT and an amazing exhaust.
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      06-29-2018, 02:08 PM   #19
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All sounds like positive improvements except the size. I get it's just a little bigger, but are people really buying 3 series for extra rear seat legroom and a big trunk? Wish this trend would reverse...
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      06-29-2018, 02:11 PM   #20
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Regardless of the fact that the "regular" auto transmission gets good reviews, I am shocked they would get rid of DCT. But 6MT always, anyway
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      06-29-2018, 02:13 PM   #21
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Also - isn't the m3 getting more hp than the x3m? 480 vs 465? Not that it matters that much. Hopefully competition pack/model is 500
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      06-29-2018, 02:13 PM   #22
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My eyes are getting old, but the only thing that I saw in this story was "drive through a standard-fit six-speed manual gearbox".

Please BMW, please.
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