[A_]

Originally Posted by komalol

For my M8 to get these times, I would need a Stage1 Tune
I wonder what times your M8 would get with a tune!!

Over two years ago, I bought a Racechip black for my M8. But when I checked the measurements of the standard M8, I gave up. However, I suppose that at a low temperature of +8+10 degrees Celsius with the race chip installed, you can reach 100-200 km/h in a repeatable 5.9-6.0 seconds, rather than a repeatable 6.3-6.4 seconds. Sometimes it was possible to go below 6.3 seconds, but these were rare results.

Originally Posted by M6-Coupe

As I said the one C&D measured, is a fully loaded including CCB except bucket seat because car was 2020 model and I believe bucket seat was not option at that time.
So if you subtract the saving on bucket seat ( which is claimed 22 lb earlier in this forum) from 4251 lb you can find the weight as 4229 lbs..
Having said that I believe what BMWUSA claims for NA as 4295 lb is the weight of fully loaded M8 without CCB and bucket seat.
Not sure what BMW saves for European version.

I have a big problem with pounds. I don't know when it's heavy, when it's light, I don't know the reference point That's why I have to convert it to kilograms. Am I to understand that the C&D weighed the M8 with the driver on board?

Carbon Buckets Seats and Harman Kardon Audio weigh less together than Comfort Seats with B&W Audio. 35 pounds less. So that's less than 16 kg. That's why they didn't put B&W Audio in the M5 CS.


I'm going off topic today because I've learned unofficially that the 5 G60 series is even worse made on the inside than the 3/4 series. The likely reason for this is that BMW spent too much money on investments related to the introduction of the Neue Klasse.

[M6-Coupe]

Originally Posted by A_

I have a big problem with pounds. I don't know when it's heavy, when it's light, I don't know the reference point That's why I have to convert it to kilograms. Am I to understand that the C&D weighed the M8 with the driver on board?

Carbon Buckets Seats and Harman Kardon Audio weigh less together than Comfort Seats with B&W Audio. 35 pounds less. So that's less than 16 kg. That's why they didn't put B&W Audio in the M5 CS.


I'm going off topic today because I've learned unofficially that the 5 G60 series is even worse made on the inside than the 3/4 series. The likely reason for this is that BMW spent too much money on investments related to the introduction of the Neue Klasse.

Dude don't make things complex LOL
The discussion was M8 vs M6.
I have no idea how C&D measure weight but I know they do the same for all cars; however obviously it's the weight without driver but not clear about amount of gas.
They reported 4250 lb (1931.8 kg) for a fully loaded M6 Coupe.
They reported 4251 lb (1932.2 kg)for a fully loaded M8 Coupe with CCB (50 lbs (22.7 kg) weight saving).
So it makes sense M8 Coupe is about 50 lb (22.7 kg) heavier than M6 Coupe with respect to AWD.
They also reported 4096 lb (1861.8 kg)for M5CS.

[A_]

Originally Posted by M6-Coupe

Dude don't make things complex LOL
The discussion was M8 vs M6.
I have no idea how C&D measure weight but I know they do the same for all cars; however obviously it's the weight without driver but not clear about amount of gas.
They reported 4250 lb (1931.8 kg) for a fully loaded M6 Coupe.
They reported 4251 lb (1932.2 kg)for a fully loaded M8 Coupe with CCB (50 lbs (22.7 kg) weight saving).
So it makes sense M8 Coupe is about 50 lb (22.7 kg) heavier than M6 Coupe with respect to AWD.
They also reported 4096 lb (1861.8 kg)for M5CS.

It is not possible for there to be such a large difference in weight between the M8 Coupé and the M5 CS as reported by C&D. Earlier, I reported the weight of the M8 Coupé with Carbon Ceramic Brakes as 1885 kg, or 4155 lb without a driver.
I assume that C&D simply reported the catalog weight for the M5 CS without a driver.
I once heard that the difference between the base M5 Competition and the M5 CS is as much as 65-70 kg, or 154 lb, but if you add CCB and Harman Kardon audio, the weight difference drops to 30-40 kg, or about 77 lb.
Now we'll subtract 10 kg or 22 lb for the Carbon Bucket Seats. The difference of 20-30 kg consists of a carbon hood, if I remember correctly, fewer door seals, and a carbon trunk lid instead of an aluminum one.

Therefore, the lightest configuration of the M8 Coupé can weigh 1869-1870 kg without the driver.

Sports car manufacturers often cheat by stating the weight of the car without the driver. It looks great from a marketing perspective. In my opinion, BMW should always do this, but with the M5 G90 it makes no sense

[M6-Coupe]

Originally Posted by A_

It is not possible for there to be such a large difference in weight between the M8 Coupé and the M5 CS as reported by C&D. Earlier, I reported the weight of the M8 Coupé with Carbon Ceramic Brakes as 1885 kg, or 4155 lb without a driver.
I assume that C&D simply reported the catalog weight for the M5 CS without a driver.
I once heard that the difference between the base M5 Competition and the M5 CS is as much as 65-70 kg, or 154 lb, but if you add CCB and Harman Kardon audio, the weight difference drops to 30-40 kg, or about 77 lb.
Now we'll subtract 10 kg or 22 lb for the Carbon Bucket Seats. The difference of 20-30 kg consists of a carbon hood, if I remember correctly, fewer door seals, and a carbon trunk lid instead of an aluminum one.

Therefore, the lightest configuration of the M8 Coupé can weigh 1869-1870 kg without the driver.

Sports car manufacturers often cheat by stating the weight of the car without the driver. It looks great from a marketing perspective. In my opinion, BMW should always do this, but with the M5 G90 it makes no sense

I guess you miscalculated somewhere. The difference between M5 Competition and M5CS is more than 100 kg!

Here is BMW release on M5CS:
BMW M5 CS Facts
• The quickest and most powerful BMW production vehicle ever.
• 627 hp and 553 lb.-ft. of torque.
• 230 lbs. lighter than M5 Competition.
• 0-60 mph in 2.9 seconds. Top speed of 190 mph.
• MSRP of $142,000 plus $995 Destination.
• Production begins March 2021 & limited to one model year only (2022).
• U.S. cars expected to arrive 2nd half of 2021.
https://f90.bimmerpost.com/forums/sh....php?t=1794576

So if the M5competition is 4330 lbs then M5CS should be about 4100 lbs right?
I believe C&D definitely measures the actual weight of test cars.

[A_]

Originally Posted by M6-Coupe

I guess you miscalculated somewhere. The difference between M5 Competition and M5CS is more than 100 kg!

Here is BMW release on M5CS:
BMW M5 CS Facts
• The quickest and most powerful BMW production vehicle ever.
• 627 hp and 553 lb.-ft. of torque.
• 230 lbs. lighter than M5 Competition.
• 0-60 mph in 2.9 seconds. Top speed of 190 mph.
• MSRP of $142,000 plus $995 Destination.
• Production begins March 2021 & limited to one model year only (2022).
• U.S. cars expected to arrive 2nd half of 2021.
https://f90.bimmerpost.com/forums/sh....php?t=1794576

So if the M5competition is 4330 lbs then M5CS should be about 4100 lbs right?
I believe C&D definitely measures the actual weight of test cars.

I think BMW is cheating, but thanks to this, it nicely boosts the marketing aura of its product. It took away the weight of the heaviest possible M5 F90 with a steel roof and sunroof, the heaviest rims, B&W audio and, of course, steel brakes, and subtracted the lightest CS version, hence the difference.
Even the rear seat in CS weighs less than the standard rear seats in the M5

[M6-Coupe]

Originally Posted by A_

I think BMW is cheating, but thanks to this, it nicely boosts the marketing aura of its product. It took away the weight of the heaviest possible M5 F90 with a steel roof and sunroof, the heaviest rims, B&W audio and, of course, steel brakes, and subtracted the lightest CS version, hence the difference.
Even the rear seat in CS weighs less than the standard rear seats in the M5

Ummm
You mean M5 competition at 4330 lb is the heaviest F90 M5?
I don’t believe so. M5 is at least 4” longer and 3” taller than M8 Coupe so 4330 is the lightest one.
I think we all agree that M5 Competition is heavier that M8 Coupe competition.
If I’m not mistaken it was rated 3450 lb on BMWUSA website while M8 Coupe was rated 4295 lb.

[komalol]

Originally Posted by M6-Coupe

Ummm
You mean M5 competition at 4330 lb is the heaviest F90 M5?
I don’t believe so. M5 is at least 4” longer and 3” taller than M8 Coupe so 4330 is the lightest one.
I think we all agree that M5 Competition is heavier that M8 Coupe competition.
If I’m not mistaken it was rated 3450 lb on BMWUSA website while M8 Coupe was rated 4295 lb.

Thanks to WLTP, I have the weights of the different configurations.
For EU-Models from 04/2021, the kerb weights with serial equipment are:
M5 CS : 4024 lbs (config. range 4024-4098)
M5 Comp : 4178 lbs (config. range 4105-4345)
M8 Comp Coupe : 4189 lbs (config. range 4116-4250)
M850i Coupe : 4255 lbs (config. range 4158-4367)

[Dasky_spas]

I weighed my850 coupe, no carbon roof, with rear seats removed (36lbs), and one carbon bucket for the driver seat with 5/8 tank of gas at 4300lbs. I expect to get the car down to sub 4100lbs with ccb installed.

[M6-Coupe]

Originally Posted by komalol

M5 CS : 4015 lbs (config. range 4015-4090)

I thought all M5CS were coming with standard options including B&W , DA, DAP, CCB, Bucket seat, CF HOOd, CF exterior; so what is the reason of 75 lbs variation?

[komalol]

Originally Posted by M6-Coupe

I thought all M5CS were coming with standard options including B&W , DA, DAP, CCB, Bucket seat, CF HOOd, CF exterior; so what is the reason of 75 lbs variation?

Depends on the country.
In Europe, M5 CS came standard with Harman/Kardon (no B&W option) and all carbon equipment (seats, brakes, roof etc.).
Options in most countries were individual colors, tainted glass, TV-Function plus, certain driving assistants (not all countries).
I looked in detail in my DB and only found 2 cars with the max weight (out of over 600 cars). The rest are between 4015 and 4030 lbs.

[M6-Coupe]

Originally Posted by komalol

Depends on the country.
In Europe, M5 CS came standard with Harman/Kardon (no B&W option) and all carbon equipment (seats, brakes, roof etc.).
Options in most countries were individual colors, tainted glass, TV-Function plus, certain driving assistants (not all countries).
I looked in detail in my DB and only found 2 cars with the max weight (out of over 600 cars). The rest are between 4015 and 4030 lbs.

So the one measured by C&D was the heaviest one (4096 lb) hence the most equipped one!

[M6-Coupe]

Originally Posted by komalol

M8 Comp Coupe : 4180 lbs (config. range 4107-4191)

So what US version of M8 Coupe has that is not included in your list?
In US M8 Coupe is reported by BMWUSA as 4295 lbs

[komalol]

Originally Posted by M6-Coupe

So what US version of M8 Coupe has that is not included in your list?
In US M8 Coupe is reported by BMWUSA as 4295 lbs

Unfortunately, I only have EU cars in my list. US is another market with other regulations/standard equipment/options, which may explain some of the differences in weight....

[M6-Coupe]

Originally Posted by komalol

Unfortunately, I only have EU cars in my list. US is another market with other regulations/standard equipment/options, which may explain some of the differences in weight....

TBH your data made me curious to know how much my M8 weighs.
I need to find a place to weigh my car.
I have most of the options except CCB, bucket seat and M Driver’s package.
I dont think Driver’s package has anything with weight. It must be just software.

BTW thanks for data you shared.
They are so helpful.

[komalol]

Originally Posted by M6-Coupe

TBH your data made me curious to know how much my M8 weighs.
I need to find a place to weigh my car.
I have most of the options except CCB, bucket seat and M Driver’s package.
I dont think Driver’s package has anything with weight. It must be just software.

BTW thanks for data you shared.
They are so helpful.

You're welcome. I searched a little bit on the US sites to see what could explain the differences in weights between EU and US BMW's. As I already wrote previously, the main difference seems to bee the exhaust system (including particle filters etc.). The standard equipment may vary, but there are no difference in total equipment available.

[M6-Coupe]

Originally Posted by komalol

As I already wrote previously, the main difference seems to bee the exhaust system (including particle filters etc.). The standard equipment may vary, but there are no difference in total equipment available.

This is what I was thinking due to different standards but exhaust by itself cannot explain 100 lbs.
There must be somthing extra.

[M6-Coupe]

Originally Posted by komalol

Depends on the country.
In Europe, M5 CS came standard with Harman/Kardon (no B&W option) and all carbon equipment (seats, brakes, roof etc.).
Options in most countries were individual colors, tainted glass, TV-Function plus, certain driving assistants (not all countries).
I looked in detail in my DB and only found 2 cars with the max weight (out of over 600 cars). The rest are between 4015 and 4030 lbs.

Off topics but even with less weight and more power M5CS has over M8 Coupe Competition / GC Competition, the best quarter mile record from Carwow for M5CS is 10.9 seconds while M8 Coupe can complete the quarter mile is 10.8 seconds.
M8 GC also can complete the quarter mile in 10.9 seconds.

[A_]

Originally Posted by komalol

Thanks to WLTP, I have the weights of the different configurations.
For EU-Models from 04/2021, the kerb weights with serial equipment are:
M5 CS : 4015 lbs (config. range 4015-4090)
M5 Comp : 4169 lbs (config. range 4096-4336)
M8 Comp Coupe : 4180 lbs (config. range 4107-4242)

Thanks for this data, which shows that the lightest configuration of the M8 Coupé with CCB and Carbon Buckets Seats weighs 1863 kg without the driver (4107 lb).

[A_]

Originally Posted by M6-Coupe

Off topics but even with less weight and more power M5CS has over M8 Coupe Competition / GC Competition, the best quarter mile record from Carwow for M5CS is 10.9 seconds while M8 Coupe can complete the quarter mile is 10.8 seconds.
M8 GC also can complete the quarter mile in 10.9 seconds.

During the premiere of the M8, I heard that BMW had a problem with traction in this model and added a 10-20 kg bar to the rear of the car to better weight the rear axle. Hence the difference in weight between the M5 and M8, because in the past, the M6 F13/E63 models were always slightly lighter than the M5 models.

[A_]

Originally Posted by M6-Coupe

So what US version of M8 Coupe has that is not included in your list?
In US M8 Coupe is reported by BMWUSA as 4295 lbs

It must be the weight including the driver and luggage.

[Moopai]

M850 GC has the same carbon core.

Originally Posted by ViO

I know the M8 Convertible has the “Carbon Core” as part of its door sil logo… I’m not sure if the M850 has the same “Carbon Core” structure? If it doesn’t then I believe that would be the answer (or part of) to your question. 😊

And If it does… Then perhaps the rear wheel steering assembly of the M850 weighs more than not having it on the M8?

And of course it could be any combination of the two. 😊

[Moopai]

No massaging seats in the 8-Series not even the Alpina. It's actually pathetic that BMW did not include massaging seat in their flagship!

Originally Posted by M6-Coupe

According to BMW website M850 GC weighs 4696 lb while M8 GC weighs 4480 lb so the difference is 216 lb.
The weight difference between M850 Coupe and M8 Coupe is 132 lb (4427 lb vs 4295 lb) and for Convertible is 130 lb (4560 vs 4690).

I believe the majority of this difference is coming from the followings:
Roof: CF roof vs Metal roof
Rear Steering: M8 does not have this feature
Wheels: M8 has tubeless tire but M850 has RFT and I assume M8 has light weight rim.
Seats: M850 has more luxury seats with some additional options such as massaging. M8 has more sporty / lighter weight seats.
Suspensions: M8 has light weight suspension with lots of aluminum parts.

In addition probably the other components like engine, gearbox, differential might have some weight saving on M8