[aerobod]

Originally Posted by Allenssmart

makes you wonder what other cost cutting /corner cutting measures were made

what about the build quality of the vehicle? it's already being built in mexico, was that not a big enough cost cut already?

If you go to a BMW dealer and look at the fit and finish of the cars on display, the M240i built in Mexico is right at the top, with shutlines better than anything Lexus can produce. Basically the most precise build quality from the newest factory, it seems.

[Tag]

Originally Posted by atl_1M

Are cast wheels really 7-10 lbs heavier per wheel compared to forged? Seems like a lot, but I'm not a wheel expert. If true, that's good news since I'd be running aftermarket anyway.

Check out this link that swagon posted, Link to M3/M4 weights.

The 829M are cast wheels while the rest are forged. It's not apple to apples, but you get the gist. The weight difference is substantial, especially when it's unsprung weight.

[T_U_D]

Cannot say I am surprised. Forged wheels are costly.

[m20e3087]

Not G87 M2 related but nicely sums it up at the end.

[M3WC]

Originally Posted by M3WC

US press release weights:
G82 manual - 3830
G87 manual - 3814

Originally Posted by StickyPickle

Where is the US press release specs? All I've seen is this that shows the manual version as weighing 1700KG (3,748lbs)

Scroll to technical specs.

https://g80.bimmerpost.com/forums/sh....php?t=1759748

https://g42.bimmerpost.com/forums/sh....php?t=1961085

[atl_1M]

Originally Posted by M3WC

Scroll to technical specs.

https://g80.bimmerpost.com/forums/sh....php?t=1759748

https://g42.bimmerpost.com/forums/sh....php?t=1961085

Is it clear what spec the weight is based on? I.e, cf buckets, cf roof, etc

[10"]

Nasty cost cutting—-I think these little details spell out the end days for the M division as we knew it—

[Albator_IIII]

Originally Posted by 10"

Nasty cost cutting—-I think these little details spell out the end days for the M division as we knew it—

The M division is already not what it used to be. Long ago, they vowed to stick to N/A ICE, RWD and be about more performance than luxury.

They have to compromise to stay relevant. R&D costs are high which either mandates crazy price per unit or volume sold. If you go volume, you have to appeal to more buyers. Most buyers paying M car prices expect some amenities and luxuries. They want the M badge to flash.

Such is life.

[Tag]

If I try really hard to put lipstick on this pig, I can convince myself that the only good news with this is that there's a decent amount of weight that can easily be trimmed off of Porky. Also, if you live in a part of the county where you get snow (as I do) and plan on driving the M2 in winter you can make the shitty stock wheels your winter set.

That said, I can't lie. Shit like this just ticks me off.

[StickyPickle]

Originally Posted by M3WC

Scroll to technical specs.

https://g80.bimmerpost.com/forums/sh....php?t=1759748

https://g42.bimmerpost.com/forums/sh....php?t=1961085

So why the discrepancy between that and the other press release specs?

[M3WC]

Originally Posted by StickyPickle

So why the discrepancy between that and the other press release specs?

The 1700kg is DIN weight. There are generally three weights thrown around.

EU/Germany:
1. EU ( Car with 90% fuel, 68kg driver, 7kg luggage (75kg).
2. DIN ( Car with 90% fuel, no driver, no luggage )

US Curb Weight:
3. Weight of car with fluids and fuel at 100% as well as weight of any option expected to be in more than 33% of vehicles sold.

Originally Posted by atl_1M

Is it clear what spec the weight is based on? I.e, cf buckets, cf roof, etc

I would definitely say US curb weight will include sunroof, not carbon roof or buckets.

[M2PDX]

Originally Posted by JTO24

Na, the f87 was heavy, too. But at least BMW gave us the 437M forged wheels instead of creating a cast copy with different coloring.

The 437s may be forged, but they are not lightweight. I discovered that when I removed them. HEAVY. Made a huge difference when I swapped them out for 963s.

The best alternative will be a set of lightweight Apex wheels.

Great designs and available for under $2,000 a set.

[pizza240]

Maybe I'm an idiot, but where are y'all seeing the weight of the 930M wheels?

Link? Source?

[Game]

Originally Posted by pizza240

Maybe I'm an idiot, but where are y'all seeing the weight of the 930M wheels?

Link? Source?

Said the same thing. We haven't seen one source.

[M3WC]

Originally Posted by M2PDX

The 437s may be forged, but they are not lightweight. I discovered that when I removed them. HEAVY. Made a huge difference when I swapped them out for 963s.

The best alternative will be a set of lightweight Apex wheels.

Great designs and available for under $2,000 a set.

473M were lighter than the 788M on the Comp. They were not bad actually for oem wheels.

437M
19x9 – 22.2 lbs
19x10 – 24.2 lbs

788M
19x9.0 – 24.7 lbs
19x10 – 26.24 lbs

If the G87 wheels are truly cast, they will be over 30lbs each. Still hard to believe this is true. 763 M were true lightweight oem wheels for F8x series.

763M
19x9 - 20.75 lbs
19x10 - 21.80 lbs

[VIERsr]

All M Performance wheels are actually flow-forged and not fully forged. They are still better than cast wheels and represent a decent compromise between quality and price for an OEM rim, but they are far from being truly lightweight.
I don't see the problem anyway, OEM wheels as a winter set and one of the many choices for summer wheels.

[Tag]

Originally Posted by VIERsr

All M Performance wheels are actually flow-forged and not fully forged. They are still better than cast wheels and represent a decent compromise between quality and price for an OEM rim, but they are far from being truly lightweight.
I don't see the problem anyway, OEM wheels as a winter set and one of the many choices for summer wheels.

What's your source for them not being fully forged? Here's a direct quote from BMW M where they say they are forged wheels, not flow-formed.

Is the 18" entry level wheel a cast or forged wheel?

Kristian: All summer wheels for the new BMW M3 and M4 are forged aluminum wheels. The basic wheel Styling 824 and the two M Performance Stylings 963M and 1000M are even completely milled. The winter wheel 829M is a cast wheel.

Source: WHEEL DESIGN. Episode 04: BMW M3 & M4 Explained.

[swagon]

Originally Posted by M3WC

473M were lighter than the 788M on the Comp. They were not bad actually for oem wheels.

437M
19x9 – 22.2 lbs
19x10 – 24.2 lbs

788M
19x9.0 – 24.7 lbs
19x10 – 26.24 lbs

If the G87 wheels are truly cast, they will be over 30lbs each. Still hard to believe this is true. 763 M were true lightweight oem wheels for F8x series.

763M
19x9 - 20.75 lbs
19x10 - 21.80 lbs

Originally Posted by VIERsr

All M Performance wheels are actually flow-forged and not fully forged. They are still better than cast wheels and represent a decent compromise between quality and price for an OEM rim, but they are far from being truly lightweight.
I don't see the problem anyway, OEM wheels as a winter set and one of the many choices for summer wheels.

18" 513M came in at roughly 20 lbs and 22 lbs.

Not the lightest around, but MUCH better than what they had on E46 and E9x M3 which had the base 19s forged from Fuchs as well. But for the F8x gen, Fuchs and BMW paid a bit more attention to weight savings and created the lightest BMW wheels in their respective sizing.

I think for the price and piece of mind being an OEM wheel, they were really great.

[swagon]

Originally Posted by Tag

If I try really hard to put lipstick on this pig, I can convince myself that the only good news with this is that there's a decent amount of weight that can easily be trimmed off of Porky. Also, if you live in a part of the county where you get snow (as I do) and plan on driving the M2 in winter you can make the shitty stock wheels your winter set.

That said, I can't lie. Shit like this just ticks me off.

And no Lithium battery in G8x either. Switched back to AGM.

[M3WC]

Originally Posted by Tag

What's your source for them not being fully forged? Here's a direct quote from BMW M where they say they are forged wheels, not flow-formed.

There is no source, it isn't a true statement. BMW has had multiple wheel suppliers, the majority of M wheels have been forged. F8x 513m and 473m wheels were both forged and produced by Fuchs felge. Same Fuchs that makes wheels for many oems including Porsche.

https://www.fuchsfelge.com/en/wheel-...wheel-321.html

https://www.fuchsfelge.com/en/wheel-...wheel-320.html

[VIERsr]

Originally Posted by Tag

What's your source for them not being fully forged? Here's a direct quote from BMW M where they say they are forged wheels, not flow-formed.



Source: WHEEL DESIGN. Episode 04: BMW M3 & M4 Explained.

The 763m were flow formed and I am sure, but the weight and price are already a clear statement that they are not fully forged, a fully forged wheel would be much lighter and also much more expensive, especially considering they are OEM parts.
A fully forged 19" rim is around 17 lbs/2500 $ each.
Bmw is not lying by saying they are forged, they are, just that the production process is different, I think for fully forged wheels we have to rise to the level of Ferrari, McLaren and so on.

[pizza240]

This thread is ridiculous then. It's misleading.

No one has provided evidence or a good argument for why they're cast.

Best argument I can deduce is that OP is assuming that they're cast simply because they're called "930M"—and because 930 is a close number to 929—and the 929 are cast wheels.

Correct me on my understanding of the 'logic'... or maybe moderators should change the title and body of the thread and original post.