M8 AND 8 SERIES
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW M8 Forum and 8 Series Forum BMW M8 and 8-Series General Discussion BMW M8 Road Car to Get Transaxle and Other Benefits From M8 GTE Race Car

Post Reply
 
Thread Tools Search this Thread
      01-05-2018, 05:20 AM   #1
Jason
Administrator
Jason's Avatar
United_States
12536
Rep
18,731
Posts

Drives: F80 M3
Join Date: Mar 2005
Location: USA

iTrader: (0)

BMW M8 Road Car to Get Transaxle and Other Benefits From M8 GTE Race Car

BIMMERPOST NEWS
BMW M8 Road Car to Get Transaxle From M8 GTE Race Car
29
COMMENTS
Name:  bmw-8-series-m8-gte-001-1.jpg
Views: 4984
Size:  155.0 KB



BMW Motorsport Director, Jens Marquardt recently gave the following interview to Racer.com, in which he talks how the M8 road version will benefit from the M8 GTE engineering, including its transaxle (an integrated assembly combining functions of both the transmission and differential). What are the benefits of a transaxle instead of traditional transmission and differential? Better weight distribution and reduced overall vehicle weight (because there's no separate differential unit).


INSIGHT: BMW's new M8 GTE

Thursday, 04 January 2018

For the third time in six seasons BMW Motorsport Team RLL will show up at the opening race of the IMSA WeatherTech SportsCar Championship season with a new model car. This time, BMW Motorsport unveils the M8 GTE, based on the yet-to-be released road-going M8 that was revealed at summer's end in 2017.

In addition to an assault on the IMSA WeatherTech Championship, BMW will also return to Le Mans in 2018 for the first time since the mighty V12 LMR won the race overall in 1999. Thus, the M8 GTE will form the foundation of a two-pronged attack, with the FIA World Endurance Championship also on the menu. Perhaps for this reason, that the M8 GTE is a more racing-focused machine that its predecessors, the Z4 GTE and the M6 GTLM.

"The M6 GTLM didn't begin with the intention of running in the GTLM class," says BMW Motorsport Director Jens Marquardt. "It was originally planned as only a GT3-spec car, but when some rules convergence initiatives didn't work out in 2014, we were already too far up the path to turn back. So, I'm very grateful to IMSA that they were willing to work with us to make the changes we had to do to the M6 to allow it to race."

The M8 GTE, on the other hand, has been fully conceived from a clean sheet, with the specific objective of endurance racing in the top GT class in both the U.S. and internationally.

"The M8 is a purpose-built GTE car," continues Marquardt (below). "Whereas the M6 GTLM was a 95 percent production-based drivetrain, the M8 GTE is more like 30 percent to 40 percent production-based, and the rest is bespoke motorsport."

Marquardt credits his team at BMW Motorsport in Munich who collectively work on all their programs from IMSA to DTM, and now WEC and Formula E, for taking the collective experience gained from all the series and focusing it forward on the 2018 programs. Because of the effort put it in, Marquardt insists that BMW will arrive at the Rolex 24 At Daytona with victory as it only target. This is despite being the only all-new car on the GTLM grid.

"We recently completed a 24-hour test at Circuit Paul Ricard and I'm very happy with the results," he says. "No test is ever perfect, but I'm pleased to say that all the problems encountered were successfully resolved in the first try. So, I really need to give my guys credit that they are applying all of their experience from not only what we learned with the M6 GTLM, but also from what we are doing in other race series."

The M8 GTE will be powered by a 4.0L turbo-charged V8 that produces over 500 horsepower.

"On the engine, there has been a lot of effort put into both efficiency and performance," says Marquardt. "Compared to the M6, we have all new electronics in the engine management and the gearbox is also all-new."

The chassis for the car is not only new, but constructed very differently to base chassis for the M6, and is therefore less compromised.

"In this respect, we didn't target any customer-racing programs with this car," he says. "It is really only a proper works car."

The approach that BMW has taken with the M8 GTE has in part come as a response to the elevated technology and purpose-built approach that a few of its GTE/LM competitors have taken to their cars. Indeed, some say that the Ford's GT and Porsche's 911 RSR have pushed the rules as far as possible, and are closer to a prototype in GT clothing. To this point, Marquardt believes that while the M8 GTE is a bespoke racecar, it is still very close in spirit to the eventual production version, and thus a purer GT car.

"The chassis for the M8 road version is built in the same line as the GTE cars, and the engine location and transaxle concept are exactly the same in both cars," says Marquardt.

"Surely, we will exceed the production volumes that are required for homologation, and to the best of my knowledge neither Ford [with the GT] or Porsche [with a mid-engine 911] have as of yet.

"Ford has done a great job of starting with a pure racecar and then finding a way to build the minimum number needed for a road car. We have chosen to do the opposite, because the concept for the M8 as a road car came first."

To underscore how the M8 GTE straddles the line between pure-bred racecar and production road car, Marquardt explains a key chassis difference.

"Production cars have a lot of safety and comfort requirements that make them quite heavy compared to a racecar," he says.

"As a result, to meet those requirements and still have the desired performance the road car chassis is made very stiff. They are actually too stiff for the weight of a racecar. So for the M8 GTE, we have replaced the steel front subframe of the road car with a carbon crash structure that meets our targets for weight and stiffness on the racecar."

The M8 GTE is smaller, lower and of shorter wheelbase than the outgoing M6 GTLM, but it is still a large car by racing standards. So Marquardt expects that the flowing, longer tracks as found across the WEC as well as Daytona, Sebring and the summer swing of traditional natural terrain road-courses that IMSA will compete on are most suited to the M8 GTE's characteristics. If the BoP is managed correctly, this GTLM season is serving up to be one of the most anticipated yet.

"Everyone is very excited about this new car, and Bobby [Rahal] and his team are eager to start racing," Marquardt says. "We know it's going to be a lot of hard work, but this car is a big step forward."

__________________
Check on the Latest BMW News
Become a fan of Bimmerpost Facebook
Follow us on Bimmerpost Twitter
Subscribe to Bimmerpost Youtube Channel
Appreciate 3
      01-05-2018, 09:14 AM   #2
mkoesel
Moderator
United_States
2430
Rep
17,096
Posts

Drives: 2015 SO/CSAT F80 M3
Join Date: Jun 2006
Location: Canton, MI

iTrader: (1)

This is all very intriguing. On the surface of things, it seems to at least allow for the possibility that there could be an M8 CSL which gains perhaps some of the CF chassis components from the M8 GTE:

Quote:
The chassis for the M8 road version is built in the same line as the GTE cars...

for the M8 GTE, we have replaced the steel front subframe of the road car with a carbon crash structure...
Sure, the article specifically calls out the fact that roads cars have safety/stiffness requirements to adhere to, but it seems to me that there is at least a chance that an M8 CSL could still meet regulatory obligations while adopting some CFRP in the chassis. If this were to happen, along with using more CFRP body panels, we might finally have a modern BMW worthy of the CSL name. In other words, a car that doesn't attempt to lose weight by simply "bolting on" lightness.
__________________
A gen-u-ine BMW eff-eight-zero with them tandem clutches in the transmission and that dad gum sun roof on the top-a da cawr.
Appreciate 2
      01-05-2018, 09:33 AM   #3
MRV99
Captain
MRV99's Avatar
United_States
103
Rep
896
Posts

Drives: 2017 M3 ZCP / 2017 RRS SC
Join Date: Aug 2012
Location: Naperville

iTrader: (1)

Garage List
2011 BMW M3  [0.00]
This article does give me more hope this year. During the M6 era, I felt like we really needed strategy to win races where other cars could win on strategy and performance.

I look forward to being woken up by the lead M8's while taking nap in the carousel after a 4 days of fun
__________________

17 M3 ZCP -- 2017 Range Rover Sport SC
--RIP--
12 X5 50i Sport -- 11 M3 DCT -- 2011 X5 50i(Lemon) -- 2008 550 Msport -- 2007 x5 4.8 sport -- 2004 545 sport -- 2002 x5 4.4 sport -- 2001 540i Msport 2000 SL500 -- 1997 SL500
Appreciate 1
      01-05-2018, 10:41 AM   #4
Brasko
#LSBM3
Brasko's Avatar
No_Country
547
Rep
1,270
Posts

Drives: 2016 BMW M3 ZCP
Join Date: Feb 2015
Location: Tampa Bay, Florida

iTrader: (4)

Garage List
2016 BMW M3 ZCP  [0.00]
Would be great if they offered the CF wide body kit from the M8 GTE race car too. I'd check it off if it were an option.
__________________
2016 LAGUNA SECA BLUE /// M3 ZCP
Appreciate 0
      01-05-2018, 11:50 AM   #5
M3 Adjuster
Major General
M3 Adjuster's Avatar
United_States
3150
Rep
9,258
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by MRV99 View Post
This article does give me more hope this year. During the M6 era, I felt like we really needed strategy to win races where other cars could win on strategy and performance.

I look forward to being woken up by the lead M8's while taking nap in the carousel after a 4 days of fun
Officially jealous. I live near COTA. Haven't been to a 24 hour pro race. A man has to havr goals doesn't he!
__________________
Lone Star BMW CCA Chapter Ex-president (retired 2017) , Chief Driving Instructor - LIFETIME Member # 119366
If you don't STAND for something.. you'll FALL for anything
Past: 1991 BMW E30 M3 street car ; 1988 BMW E30 M3 track car
Appreciate 0
      01-05-2018, 11:56 AM   #6
M3 Adjuster
Major General
M3 Adjuster's Avatar
United_States
3150
Rep
9,258
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

500 hp. Omg, are we going to need all wheel drive like in the M5 ?


Seriously though, this car actually seems to harken back toward the E30 M3, when BMW made a race car to compete in Gruppe A and Gruppe N and *then* transferred it over to being a street car.

Seemingly every other race car that BMW has made was more converting a street car to a race car, particularly recently with the z4 GTE and the M6 GTE as described above.

While I will never be able to afford one probably, I'm very excited to see the M8 road car as it looks to really be developed with a new philosophy.

RACE IT, then STREET IT.
__________________
Lone Star BMW CCA Chapter Ex-president (retired 2017) , Chief Driving Instructor - LIFETIME Member # 119366
If you don't STAND for something.. you'll FALL for anything
Past: 1991 BMW E30 M3 street car ; 1988 BMW E30 M3 track car
      01-05-2018, 03:44 PM   #7
MRV99
Captain
MRV99's Avatar
United_States
103
Rep
896
Posts

Drives: 2017 M3 ZCP / 2017 RRS SC
Join Date: Aug 2012
Location: Naperville

iTrader: (1)

Garage List
2011 BMW M3  [0.00]
Quote:
Originally Posted by M3 Adjuster View Post
500 hp. Omg, are we going to need all wheel drive like in the M5 ?


Seriously though, this car actually seems to harken back toward the E30 M3, when BMW made a race car to compete in Gruppe A and Gruppe N and *then* transferred it over to being a street car.

Seemingly every other race car that BMW has made was more converting a street car to a race car, particularly recently with the z4 GTE and the M6 GTE as described above.

While I will never be able to afford one probably, I'm very excited to see the M8 road car as it looks to really be developed with a new philosophy.

RACE IT, then STREET IT.
Me too. I just want to see an overpriced high end, too much horsepower sports car which can compete with cars like the Merc GT/SLS. I don't see my kid wanting to put a poster of an M2/3/4/5/6 or 760M v12 on the wall, but a Lamborghini/Ferrari/GT will be desired. Just hope the M8 looks bad enough to get that response.
__________________

17 M3 ZCP -- 2017 Range Rover Sport SC
--RIP--
12 X5 50i Sport -- 11 M3 DCT -- 2011 X5 50i(Lemon) -- 2008 550 Msport -- 2007 x5 4.8 sport -- 2004 545 sport -- 2002 x5 4.4 sport -- 2001 540i Msport 2000 SL500 -- 1997 SL500
Appreciate 0
      01-05-2018, 04:39 PM   #8
bradleyland
TIM YOYO
United_States
934
Rep
3,296
Posts

Drives: 2013 M3
Join Date: Jun 2010
Location: Vero Beach, FL

iTrader: (0)

Garage List
Quote:
Originally Posted by mkoesel View Post
This is all very intriguing. On the surface of things, it seems to at least allow for the possibility that there could be an M8 CSL which gains perhaps some of the CF chassis components from the M8 GTE:



Sure, the article specifically calls out the fact that roads cars have safety/stiffness requirements to adhere to, but it seems to me that there is at least a chance that an M8 CSL could still meet regulatory obligations while adopting some CFRP in the chassis. If this were to happen, along with using more CFRP body panels, we might finally have a modern BMW worthy of the CSL name. In other words, a car that doesn't attempt to lose weight by simply "bolting on" lightness.
I think the challenge in bringing that big of a change to market would be the fact that they'd have to re-certify it, from a safety perspective. That's gotta be expensive.
__________________
His: 2013 ///M3 - Interlagos Blue Black M-DCT
Hers: 2013 X3 28i - N20 Mineral Silver / Sand Beige / Premium, Tech
Past: 2010 135i - TiAg Coral Red 6MT ///M-Sport
Appreciate 0
      01-05-2018, 05:35 PM   #9
mkoesel
Moderator
United_States
2430
Rep
17,096
Posts

Drives: 2015 SO/CSAT F80 M3
Join Date: Jun 2006
Location: Canton, MI

iTrader: (1)

Quote:
Originally Posted by bradleyland View Post
I think the challenge in bringing that big of a change to market would be the fact that they'd have to re-certify it, from a safety perspective. That's gotta be expensive.
True, but I'm pretty sure they had to re-certify the F82 M4 GTS too, for example, due to other changes (such as the seating).
__________________
A gen-u-ine BMW eff-eight-zero with them tandem clutches in the transmission and that dad gum sun roof on the top-a da cawr.
Appreciate 1
      01-05-2018, 06:47 PM   #10
MaximumG
Private First Class
United_States
33
Rep
109
Posts

Drives: 2014 M235i EBII May '14 ED
Join Date: Mar 2014
Location: Los Angeles

iTrader: (0)

Garage List
2014 BMW M235i  [0.00]
I think this is all very exciting to say the least.

From my understanding of Marquardt's brief description of Ford GT's chassis development, that process reminds me of E30 M3's chassis development and homologation in the old days. I know it's not exactly the same, but the philosophy is similar. But that makes me question the overall chassis stiffness of the Ford GT and its crashability and passenger safety in that regard. For a very limited production vehicle, the priorities of developing the Ford GT is very different than that of the M8.

I know that this "win on Sunday, sell on Monday" mindset isn't financially feasible for most major auto manufacturers nowadays, the compromise BMW had to accept in creating the M8 GTE from the M8, or vice versa, seems like the logical step below a program like the Ford GT.

Overall, I'm very excited to wait and see how the actual M8 drives like when it finally releases. It's not a concept or a unicorn. It is very real.
Appreciate 0
      01-05-2018, 07:49 PM   #11
drjoe66
Lieutenant
United_States
74
Rep
489
Posts

Drives: 2015 M3 & 2012 X35D
Join Date: Nov 2008
Location: Carolinas

iTrader: (0)

Am I wrong but we're the M8s way off the GTLM pace today?
__________________
2015 X35D
2018 M3 sedan manual
Appreciate 0
      01-06-2018, 02:11 AM   #12
MRV99
Captain
MRV99's Avatar
United_States
103
Rep
896
Posts

Drives: 2017 M3 ZCP / 2017 RRS SC
Join Date: Aug 2012
Location: Naperville

iTrader: (1)

Garage List
2011 BMW M3  [0.00]
Quote:
Originally Posted by drjoe66 View Post
Am I wrong but we're the M8s way off the GTLM pace today?
Yes they are off pace by what would be considered a huge margin, 3 seconds times hundreds (600-700) laps is nasty. Was this by design or because the m8 is that bad. Yes 100's of simulations and tests have been done but the only really way to know how the car will be is by actual laps. We do not know what bmw has developed as a "race/practice plan" for the race. Give them time and let's see what unfolds. Does no good to put a car off track day one unless you are really trying to finding the limit.
__________________

17 M3 ZCP -- 2017 Range Rover Sport SC
--RIP--
12 X5 50i Sport -- 11 M3 DCT -- 2011 X5 50i(Lemon) -- 2008 550 Msport -- 2007 x5 4.8 sport -- 2004 545 sport -- 2002 x5 4.4 sport -- 2001 540i Msport 2000 SL500 -- 1997 SL500
Appreciate 0
      01-06-2018, 10:47 AM   #13
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
4572
Rep
13,522
Posts

Drives: 2015 M4 DCT
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2015 BMW M4  [4.29]
2006 Audi S4  [0.00]
That is interesting. With the new M5 getting a traditional automatic and rumors of the next gen M2/3/4 going down the same route, I wonder if the road going M8 will be getting a DCT since there a few off the shelf variants that can handle higher torque outputs.

But regardless of transmission, with its race bred heritage, it seems like the M8 might be the “true” ///M to get going forward

Last edited by CanAutM3; 01-06-2018 at 12:22 PM.
Appreciate 0
      01-06-2018, 11:21 AM   #14
M3 Adjuster
Major General
M3 Adjuster's Avatar
United_States
3150
Rep
9,258
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by CanAutM3 View Post
That is interesting. With the new M5 getting a traditional automatic and rumors of the next gen M2/3/4 going down the same route, I wonder if the road going M8 will be getting a DCT since there a few off the shelf variants that can handle higher torque outputs.

It seems like the M8 might be the “true” ///M to get going forward
Well if the automatic is *faster* ...
__________________
Lone Star BMW CCA Chapter Ex-president (retired 2017) , Chief Driving Instructor - LIFETIME Member # 119366
If you don't STAND for something.. you'll FALL for anything
Past: 1991 BMW E30 M3 street car ; 1988 BMW E30 M3 track car
Appreciate 0
      01-06-2018, 12:22 PM   #15
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
4572
Rep
13,522
Posts

Drives: 2015 M4 DCT
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2015 BMW M4  [4.29]
2006 Audi S4  [0.00]
Quote:
Originally Posted by M3 Adjuster View Post
Well if the automatic is *faster* ...
__________________
2015 F82 M4
Silverstone / Silverstone / DCT / EDC
MPE / CF Diffuser / CF Mirror caps / CF spoiler / GC Camber plates / Eibach springs
Appreciate 0
      01-06-2018, 01:11 PM   #16
gmd2003
Colonel
gmd2003's Avatar
176
Rep
2,094
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by M3 Adjuster View Post
Quote:
Originally Posted by CanAutM3 View Post
That is interesting. With the new M5 getting a traditional automatic and rumors of the next gen M2/3/4 going down the same route, I wonder if the road going M8 will be getting a DCT since there a few off the shelf variants that can handle higher torque outputs.

It seems like the M8 might be the “true” ///M to get going forward
Well if the automatic is *faster* ...
It's not faster .... they don't even claim it is .
Appreciate 0
      01-06-2018, 05:40 PM   #17
Roundown
Colonel
298
Rep
2,212
Posts

Drives: BMW
Join Date: Jan 2012
Location: New England

iTrader: (0)

Quote:
Originally Posted by M3 Adjuster View Post
Quote:
Originally Posted by CanAutM3 View Post
That is interesting. With the new M5 getting a traditional automatic and rumors of the next gen M2/3/4 going down the same route, I wonder if the road going M8 will be getting a DCT since there a few off the shelf variants that can handle higher torque outputs.

It seems like the M8 might be the “true” ///M to get going forward
Well if the automatic is *faster* ...
I like what you did there.

I too find great humor in the DCT crowd being worked up over a torque converter.
Appreciate 1
      01-06-2018, 07:40 PM   #18
gmd2003
Colonel
gmd2003's Avatar
176
Rep
2,094
Posts

Drives: 2014 CP M6 and 2006 VT 525 Z4M
Join Date: May 2012
Location: South Carolina

iTrader: (2)

Quote:
Originally Posted by Roundown View Post
Quote:
Originally Posted by M3 Adjuster View Post
Quote:
Originally Posted by CanAutM3 View Post
That is interesting. With the new M5 getting a traditional automatic and rumors of the next gen M2/3/4 going down the same route, I wonder if the road going M8 will be getting a DCT since there a few off the shelf variants that can handle higher torque outputs.

It seems like the M8 might be the “true” ///M to get going forward
Well if the automatic is *faster* ...
I like what you did there.

I too find great humor in the DCT crowd being worked up over a torque converter.
I find great humor in people being ok paying much more for a less expensive part .
Appreciate 0
      01-06-2018, 08:59 PM   #19
mundo74
Lieutenant
26
Rep
510
Posts

Drives: F10M5
Join Date: Oct 2005
Location: P.Pines, FL

iTrader: (2)

Quote:
Originally Posted by Roundown View Post
Quote:
Originally Posted by M3 Adjuster View Post
Quote:
Originally Posted by CanAutM3 View Post
That is interesting. With the new M5 getting a traditional automatic and rumors of the next gen M2/3/4 going down the same route, I wonder if the road going M8 will be getting a DCT since there a few off the shelf variants that can handle higher torque outputs.

It seems like the M8 might be the “true” ///M to get going forward
Well if the automatic is *faster* ...
I like what you did there.

I too find great humor in the DCT crowd being worked up over a torque converter.
torque converter is a condom
__________________
Horse Power is a good thing
Appreciate 0
      01-06-2018, 10:56 PM   #20
Mastersteve
Registered
0
Rep
4
Posts

Drives: 335i xdrive
Join Date: Nov 2017
Location: Germany

iTrader: (0)

But what will it WEIGHT??????????

Pls not more than 1700 kg
Appreciate 0
      01-07-2018, 12:25 AM   #21
N & M
Captain
170
Rep
605
Posts

Drives: M2
Join Date: Jul 2012
Location: The Gulf

iTrader: (0)

On the right path.

Great news and positive vibes from the racing guys. I am already excited about the M8 that will follow if what is said happens.
Appreciate 0
      01-07-2018, 12:19 PM   #22
CanAutM3
Lieutenant General
CanAutM3's Avatar
Canada
4572
Rep
13,522
Posts

Drives: 2015 M4 DCT
Join Date: Jan 2012
Location: Montreal

iTrader: (0)

Garage List
2015 BMW M4  [4.29]
2006 Audi S4  [0.00]
Quote:
Originally Posted by Roundown View Post
I like what you did there.

I too find great humor in the DCT crowd being worked up over a torque converter.
It's not only about the torque converter, it is about the greater static mass, rotating inertia and parasitic losses of a planetary type automatic which make the whole drivetrain more sluggish. Albeit planetary autos keep getting better and better, so it is only a question of time before they are able to match the advantages of a DCT, but they are not quite there yet.

Just to be clear though, the M8 GTE does NOT have a planetary/torque-converter transmission.

https://ricardo.com/news-and-media/p...t-transmission
__________________
2015 F82 M4
Silverstone / Silverstone / DCT / EDC
MPE / CF Diffuser / CF Mirror caps / CF spoiler / GC Camber plates / Eibach springs

Last edited by CanAutM3; 01-07-2018 at 01:07 PM.
Appreciate 1
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 04:35 AM.




m8
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST