[msm2000uk]

Apologies in advance if there is already a thread about this, but the one aspect of my M850i which I don't like, is the rear wheel arch.

Now I know that might sound petty, but it just looks like it needs to be lowered!

I'm running 20s, so the same as an M8.

However, the M8 looks much more aggressive from the door back.

Is there anything specifically different about the M8 and M850i on the rear wheels? Is the M8 lower? Is it wider?

M

[Resjudicata]

I don't think they are dramatically different. maybe a half of an inch??

[Da808dad]

Get the H&R lowering springs which is supposed to lower it 1.2" front and rear. Gets rid of that fender gap and looks a lot nicer. This is what I'm planning on doing with my M850i.

[msm2000uk]

I'm sure a spring kit would eradicate the issue, but just wondered whether the M8 comes lower than the M850i.

There isn't that much difference between the two, but it's the one area of the car that just looks poorly thought out.

M

[RJC-1]

Spacers are needed in the rear of the M8/850 to make it look right...
https://live.staticflickr.com/65535/...d435c496_b.jpg

[bloozemanAZ]

Originally Posted by RJC-1

Spacers are needed in the rear of the M8/850 to make it look right...
https://live.staticflickr.com/65535/...d435c496_b.jpg

Absolutely agree and if I keep mine past the 3-year lease as intended I'll do the spacers as well as custom springs to lower it. My biggest gripe is the asinine greyish (how else can I describe the faux pas?) diffuser so that will go as well. 96% of the time I'm behind the wheel so neither of these nit picks are of concern. It's just the times that I see them while the car is in the garage or approaching it parked in a lot at the grocery store, etc. that they bug me. In other words not worth the hassle during the lease but if I buy it out as planned they along with the original BMW Cerium F'up on my order will be absolutely eradicated.

[msm2000uk]

I agree about the grey plastic!

My relatively inexpensive solution, would be to carbon wrap it.

Sure, it won't be as real as authentic carbon fibre, but it might improve the look!

Someone good with photoshop might be able to do a mock-up.

M

[bloozemanAZ]

Originally Posted by msm2000uk

I agree about the grey plastic!

My relatively inexpensive solution, would be to carbon wrap it.

Sure, it won't be as real as authentic carbon fibre, but it might improve the look!

Someone good with photoshop might be able to do a mock-up.

M

I've considered that as well, i.e., a wrap. The detailer who PPF'd and ceramic coated the M850i does wraps all day long on all kinds of cars and I've been impressed with the work. So wrapping just the grey diffuser for them should be a simple process and something I'm considering during the lease vs full after market carbon fiber diffuser if I keep the car long-term. I wasn't thinking carbon fiber but rather something to match the Shadowline on the car. Great idea though on the carbon fiber so if I end up going down the wrap route later this year I'll compare what he has for that and a Shadowline match to see which looks better.

[noushy]

what's more interesting is the rear window profile of the two cars are different. If you put them side by side you will see the difference. I only noticed it at the dealership when my car was parked next to a M850i coupe.

Noushy

[msm2000uk]

Originally Posted by noushy

what's more interesting is the rear window profile of the two cars are different. If you put them side by side you will see the difference. I only noticed it at the dealership when my car was parked next to a M850i coupe.

Noushy

I couldn't spot the difference, but I am blind as a bat!

M

[noushy]

Originally Posted by msm2000uk

I couldn't spot the difference, but I am blind as a bat!

M

When they are parked next to each other you see it. The M850i rear window is larger and goes farther back. We measured it thinking it was an optical illusion but it is about 1.5 inches longer. The M8 has a different slope.

Noushy

[noushy]

Look at the trailing edge you can see the height of the rear edge is lower in the M8 even from your pics. It's so weird BMW didn't mention it

Noushy

[Resjudicata]

I see it.

[limeypride]

Originally Posted by msm2000uk

Apologies in advance if there is already a thread about this, but the one aspect of my M850i which I don't like, is the rear wheel arch.

Now I know that might sound petty, but it just looks like it needs to be lowered!

I'm running 20s, so the same as an M8.

However, the M8 looks much more aggressive from the door back.

Is there anything specifically different about the M8 and M850i on the rear wheels? Is the M8 lower? Is it wider?

M

Mine looked absurd (in some ways) the day I picked it up. I realize you're asking about Coupes but they all suffer the stance and ride height issue -> pigeon-toed SAVs is the default.

Lower it; spacers; 20"+ wheels; larger tires... et voila!

Before:



After:

[bloozemanAZ]

Originally Posted by noushy

Look at the trailing edge you can see the height of the rear edge is lower in the M8 even from your pics. It's so weird BMW didn't mention it

Noushy

I see it and never realized that as I never closely compared the two from that perspective when evaluating examples of both on my dealer's showroom floor. Perhaps just the perception of the pics shared but in comparison the M850i roof line is more aerodynamic than the M8. You can see it in the C-pillar design aka the Hofmeister kink and what to appears to be a smaller and more slanted rear seat window in the process.

Perhaps just an optical illusion but if not the conspiracy theorists out there will likely claim the M850i's roof line's better aerodynamics are to help it perform without the gloriously upgraded engine, suspension, etc. in the M8/M8C coupe.

[RJC-1]

Those apparent small and completely unnecessary changes to have two separate versions would cost BMW serious additional $$$$, and for what specific purpose?

[Resjudicata]

Originally Posted by RJC-1

Those apparent small and completely unnecessary changes to have two separate versions would cost BMW serious additional $$$$, and for what specific purpose?

looks, style, weight?

[msm2000uk]

Originally Posted by limeypride

Mine looked absurd (in some ways) the day I picked it up. I realize you're asking about Coupes but they all suffer the stance and ride height issue -> pigeon-toed SAVs is the default.

Lower it; spacers; 20"+ wheels; larger tires... et voila!

Before:
Attachment 2298283


After:
Attachment 2298284
Attachment 2298285

I did admire the rear of your car in some photos I saw in another thread, and tried to work out how it looked so damn aggressive! It's a major improvement!

How big a spacer did you add - and has it affected the rear steer at all?

M

[msm2000uk]

Originally Posted by RJC-1

Those apparent small and completely unnecessary changes to have two separate versions would cost BMW serious additional $$$$, and for what specific purpose?

This is why I cannot imagine BMW changing for the M version, although if you look at the standard A6 to the new RS6, I think I read that the roof and doors are the only items copied over, so perhaps spending money on tooling is au fait nowadays.

It could be an optical illusion, but when I see an M8 parked up in London I'll try and spot the differences!

Originally Posted by Resjudicata

looks, style, weight?

But surely this would be a very expensive tooling exercise for BMW?

You would have the 8 series coupe, convertible and GC - as well as the M8 coupe, convertible and GC. 6 variants, at a time when streamlining and lowering production costs is supposedly the order of business, would be extreme for such a small production run (compared to the usual numbers BMW is used to making with the 3, 4, 5 etc).

M

[limeypride]

Originally Posted by msm2000uk

I did admire the rear of your car in some photos I saw in another thread, and tried to work out how it looked so damn aggressive! It's a major improvement!

How big a spacer did you add - and has it affected the rear steer at all?

M

Thanks. I love it.

The M8 doesn't have rear-wheel steering so obviously no concerns there. I have 15mm front and 11mm rear. I also threw out my Pirellis and replaced them with PS4Ss with a 10mm tire patch increase all around.

[noushy]

Originally Posted by bloozemanAZ

I see it and never realized that as I never closely compared the two from that perspective when evaluating examples of both on my dealer's showroom floor. Perhaps just the perception of the pics shared but in comparison the M850i roof line is more aerodynamic than the M8. You can see it in the C-pillar design aka the Hofmeister kink and what to appears to be a smaller and more slanted rear seat window in the process.

Perhaps just an optical illusion but if not the conspiracy theorists out there will likely claim the M850i's roof line's better aerodynamics are to help it perform without the gloriously upgraded engine, suspension, etc. in the M8/M8C coupe.

Yes the M8 has a more sloped roofline it drops down and makes the rear shorter. The M850i is tapered and more drawn out. It sure why the M8 is more sloped my guess is it has something to do with the aero on the car.

Noushy

[RJC-1]

Originally Posted by Resjudicata

looks, style, weight?

For such a slight difference in looks, the cost to produce two separate versions of the rear glass window doesn't make sense