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      01-21-2014, 08:25 PM   #23
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The 991 Turbo costs a lot more optioned its 156k, with no discount I paid 103400 for the M6. I have owned 4 996 Turbos, and 3 997 Turbos, so I understand how good Turbos are. But maybe I should buy a cayman S and 5 honda accords next time...They're the same arent they?? The cayman and 911 Turbo...LOLOLOL....Enjoy your car...
Yes, enjoy your car too. We have one the nicest looking designs on the road.
I have to say the 6er has one of the nicest interiors around. Can't wait to get it next month at PCD.
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      01-22-2014, 01:34 PM   #24
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Originally Posted by davuusM6GC View Post
Hey guys, great posts! as you can see, there is an argument for all three models, that's why I posted this, I'm stuck and can't decide! Unfortunately, test driving is difficult where I am, so I have a "stupid" question. What is the difference between transmissions for the 640, 650 and M6. I thought they are all "DCT" where you can drive in automatic but switch to manual shifting if you want on either the steering wheel paddles are the shifter. Am I totally wrong?!?? Sorry, I am quite behind when it comes to cars as my current car is an antique (2006 525) and I never owned or driven an M car. HELP!
640s and 650s have a ZF 8-speed automatic transmission. This trans can be shifted manually, but it is a traditional automatic with planetary gear sets and a torque converter between the engine and transmission.

The M6 has a DCT. This is a dual (wet) clutch synchromesh “manual” 7-speed transmission that is electro-hydraulically controlled. The is no clutch pedal nor conventional shifter. You can shift "manually" via the paddles or let the computer do the thinking (auto mode).
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      01-22-2014, 02:30 PM   #25
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Originally Posted by Bönz View Post
640s and 650s have a ZF 8-speed automatic transmission. This trans can be shifted manually, but it is a traditional automatic with planetary gear sets and a torque converter between the engine and transmission.

The M6 has a DCT. This is a dual (wet) clutch synchromesh “manual” 7-speed transmission that is electro-hydraulically controlled. The is no clutch pedal nor conventional shifter. You can shift "manually" via the paddles or let the computer do the thinking (auto mode).
The 640 and 650 M edition have identical suspension, trans etc. They have different engines. I thought the 640 handled slightly better as it has the same suspension but is lighter. The 650 obviously is faster both are great choices.
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      01-22-2014, 03:05 PM   #26
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The 640 and 650 M edition have identical suspension, trans etc. They have different engines. I thought the 640 handled slightly better as it has the same suspension but is lighter. The 650 obviously is faster both are great choices.
The OP had only asked about transmissions. But since you mention it, "identical" is a bit too strong. Although both the 640 and 650 are available with the ZF HP 8-speed, they are not identical. The 640 comes with a lower torque spec tranny HP45Z whereas the 650 comes with the HP70Z to handle the additional torque of the V8. Not that this is significant from the consumer's standpoint, but I like to be accurate.

Similarly, V8 models have slightly stiffer front springs to compensate for the heavier engine, although you are correct that all models (640s, 650s and the M-Sports), except the M6, have the same suspension tune (give or take DDC, which is standard in the US.)
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      01-22-2014, 03:27 PM   #27
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Originally Posted by Bönz View Post
The OP had only asked about transmissions. But since you mention it, "identical" is a bit too strong. Although both the 640 and 650 are available with the ZF HP 8-speed, they are not identical. The 640 comes with a lower torque spec tranny HP45Z whereas the 650 comes with the HP70Z to handle the additional torque of the V8. Not that this is significant from the consumer's standpoint, but I like to be accurate.

Similarly, V8 models have slightly stiffer front springs to compensate for the heavier engine, although you are correct that all models (640s, 650s and the M-Sports), except the M6, have the same suspension tune (give or take DDC, which is standard in the US.)
I am glad you are accurate as I did not know that about the tranny. Like I said I found the 640 to handle better than the 650, attributable to the lighter weight I am sure. Its not a huge difference, but I noticed. The 640 is fast also, which I was surpirsed by. Its no 650 but certainly moves
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      01-22-2014, 09:43 PM   #28
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I must say if u drive it hard frequently the M6 would be the best choice.. =)
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      01-23-2014, 08:38 AM   #29
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Originally Posted by Bönz View Post
The OP had only asked about transmissions. But since you mention it, "identical" is a bit too strong. Although both the 640 and 650 are available with the ZF HP 8-speed, they are not identical. The 640 comes with a lower torque spec tranny HP45Z whereas the 650 comes with the HP70Z to handle the additional torque of the V8. Not that this is significant from the consumer's standpoint, but I like to be accurate.

Similarly, V8 models have slightly stiffer front springs to compensate for the heavier engine, although you are correct that all models (640s, 650s and the M-Sports), except the M6, have the same suspension tune (give or take DDC, which is standard in the US.)
Bonz,

Always count on you to give us the finer details of the 6er!
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      01-23-2014, 09:51 AM   #30
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Drive both...bet you get the m6 LOL
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      01-23-2014, 11:48 PM   #31
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There is a lot more to it

As pointed out, if you need AWD, then you are kind of "stuck" with the 650xi. In that case, say Chicago winter, the 650 will always be faster than the M6 because it can get the power down in the daily yuck of the roads here. If HP is that important, there are lots of places that will help you out - but honestly, once again, in the bad weather, it won't help you go faster

Now as for the sunroof - this honestly is the single reason to me that I will not go with the M6GC. It is not about it it opening, it is about it opening up the interior. Sit in a M6GC and then get in a 650GC with the sunroof shade open - wow, two very different cars - I was in shock how much different they were - TO ME. Now there are plenty of people that don't want/care for this (hint, hint LSM) and that doesn't mean they are wrong, just have different tastes.

Side note... I went from a 2006 550i to a 2008 M5. Loved having the M5, but missed the 550 every day. In that case, it was about torque.

Side side note.. I'd go with a S6 but that DCT is not getting love on the forums and even C&D said the RS7 was possibly better since it used an automatic transmission. So personally, give me a 650GC xi with stick dammit
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      01-24-2014, 06:47 PM   #32
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I'm with you on the sunroof opening the interior.

I honestly don't care too much either way for it to heavily sway my decision. That being said, the inside with the sunroof open does feel a lot roomier than with it closed. Closed, the car feels sportier and more focused. Open, it feels lighter and roomier.

For a GT car (6er coupe/GC), the ability to go between focused sports car and luxo cruiser is nice.

The M6 coupe and GC are supposed to be the track thrashing monsters, so it makes sense that they use the CFRP to lower the center of gravity while also creating a more focused interior environment.
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      01-25-2014, 05:50 PM   #33
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I don't track my car but definitely prefer driving a car that is tight and handles better...I had a gran coupe and would hardly call it a focused sports car with sunroof open or not. I guess I have a different perspective but, BMW's used to be way more sporty. I dont think the 640/650 are very sporty. Loose steering to me, I dunno......I can appreciate the differences in wanting/not caring about a sunroof. I have owned a lot of Porsche's and always wished it didnt have a sunroof. I never opened it and always rattled...But hey glad there are different choices for different ppl
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      01-25-2014, 05:59 PM   #34
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My m6 GC is first car without sunroof I have owned in 25 years. I always seemed to keep it and the cover closed due to noises. Maybe used it 5 times/ year. Don't miss it at all, and frankly love the CF roof.... A real differentiator out there.
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      01-25-2014, 06:12 PM   #35
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Quote:
Originally Posted by LSM View Post
I don't track my car but definitely prefer driving a car that is tight and handles better...I had a gran coupe and would hardly call it a focused sports car with sunroof open or not. I guess I have a different perspective but, BMW's used to be way more sporty. I dont think the 640/650 are very sporty. Loose steering to me, I dunno......I can appreciate the differences in wanting/not caring about a sunroof. I have owned a lot of Porsche's and always wished it didnt have a sunroof. I never opened it and always rattled...But hey glad there are different choices for different ppl
They (the auto writers that is) say the GC has the best steering/handling of the entire lot (5-series, 6-series 2 door, and GC) and that applies to the M versions as well (MGC>M6>M5).

So while I fully agree that the GC should not be called a focused sports car, I disagree that the steering is loose, at least not on the one I drove. Not perfect mind you (something about this 5-series based chassis), but way better than the 550xi/535xi.

and yes "BMW's used to be way more sporty". Kind of sad.
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      01-26-2014, 03:07 AM   #36
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Get M6 and loose to omost nothing. Except for c5 z06s with superchargers
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      01-27-2014, 12:31 AM   #37
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Originally Posted by doug_999 View Post
They (the auto writers that is) say the GC has the best steering/handling of the entire lot (5-series, 6-series 2 door, and GC) and that applies to the M versions as well (MGC>M6>M5).

So while I fully agree that the GC should not be called a focused sports car, I disagree that the steering is loose, at least not on the one I drove. Not perfect mind you (something about this 5-series based chassis), but way better than the 550xi/535xi.

and yes "BMW's used to be way more sporty". Kind of sad.
I see you have a X6, honestly the X6 felt tighter better steering than the non M, 6 series i owned for 18 months. Had a X6 in 2012....I think the M6 has way better steering than non M, still not like the older bimmers though and definitely not like Porsche's at all...Not close imo. Maybe the new M3/M4 will be back to the basics
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      01-27-2014, 01:00 AM   #38
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I see you have a X6, honestly the X6 felt tighter better steering than the non M, 6 series i owned for 18 months. Had a X6 in 2012....I think the M6 has way better steering than non M, still not like the older bimmers though and definitely not like Porsche's at all...Not close imo. Maybe the new M3/M4 will be back to the basics
Yes I agree with you BMW's steering feels are far worse the the ones I had several years ago (e92). I also had an X6 before, the 6gc steering might feel not as tight as the one in x6, but it is definitely sharper.
hope the upcoming m3/4 will have the tight and sharp steering.
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      01-27-2014, 04:52 PM   #39
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I see you have a X6, honestly the X6 felt tighter better steering than the non M, 6 series i owned for 18 months. Had a X6 in 2012....I think the M6 has way better steering than non M, still not like the older bimmers though and definitely not like Porsche's at all...Not close imo. Maybe the new M3/M4 will be back to the basics
Well I think the stock steering in the X5/X6 is just crazy (strangely enough the X6 feels lighter than the two handed X5 steering). Therefore I went with Active Steering on mine and love it. It is much easier to turn at parking lot speeds but firms up really nice at speed. I'm almost tempted to go with a 650GC RWD with active steering -but each and every day of this miserable Chicago winter, I'm reminded of why I need AWD or should consider moving.
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      01-27-2014, 06:35 PM   #40
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Well I think the stock steering in the X5/X6 is just crazy (strangely enough the X6 feels lighter than the two handed X5 steering). Therefore I went with Active Steering on mine and love it. It is much easier to turn at parking lot speeds but firms up really nice at speed. I'm almost tempted to go with a 650GC RWD with active steering -but each and every day of this miserable Chicago winter, I'm reminded of why I need AWD or should consider moving.
I hear you, Im from Chicago and moved...Couldnt take it.....LOL
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      01-27-2014, 07:28 PM   #41
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Well I think the stock steering in the X5/X6 is just crazy (strangely enough the X6 feels lighter than the two handed X5 steering). Therefore I went with Active Steering on mine and love it. It is much easier to turn at parking lot speeds but firms up really nice at speed. I'm almost tempted to go with a 650GC RWD with active steering -but each and every day of this miserable Chicago winter, I'm reminded of why I need AWD or should consider moving.
Same here- RI to Florida, if I ever see snow/ice again it will be too soon.
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      02-03-2014, 09:56 PM   #42
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As pointed out, if you need AWD, then you are kind of "stuck" with the 650xi. In that case, say Chicago winter, the 650 will always be faster than the M6 because it can get the power down in the daily yuck of the roads here. If HP is that important, there are lots of places that will help you out - but honestly, once again, in the bad weather, it won't help you go faster

Now as for the sunroof - this honestly is the single reason to me that I will not go with the M6GC. It is not about it it opening, it is about it opening up the interior. Sit in a M6GC and then get in a 650GC with the sunroof shade open - wow, two very different cars - I was in shock how much different they were - TO ME. Now there are plenty of people that don't want/care for this (hint, hint LSM) and that doesn't mean they are wrong, just have different tastes.

Side note... I went from a 2006 550i to a 2008 M5. Loved having the M5, but missed the 550 every day. In that case, it was about torque.

Side side note.. I'd go with a S6 but that DCT is not getting love on the forums and even C&D said the RS7 was possibly better since it used an automatic transmission. So personally, give me a 650GC xi with stick dammit
Agree with you completely, especially with the pano roof 'opening' up the interior. The 650i xdrive, M sport was my only choice living in the northeast. The M6 CANNOT be a daily driver if you live in the NY/NJ/CT tri state area. It would be strictly a weekend car in this area. And if that were the case I could think of several other weekend cars I would rather have. I have the 19 inch rims with the Goodyear Eagle LS 2 all season tires. I love the Gran Coupe. Exhaust sounds great, ride quality on the 19's are great, couldn't be happier. My previous car was a '11 550i M sport. Liked that car a lot too.
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      02-03-2014, 10:27 PM   #43
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Agree with you completely, especially with the pano roof 'opening' up the interior. The 650i xdrive, M sport was my only choice living in the northeast. The M6 CANNOT be a daily driver if you live in the NY/NJ/CT tri state area. It would be strictly a weekend car in this area. And if that were the case I could think of several other weekend cars I would rather have. I have the 19 inch rims with the Goodyear Eagle LS 2 all season tires. I love the Gran Coupe. Exhaust sounds great, ride quality on the 19's are great, couldn't be happier. My previous car was a '11 550i M sport. Liked that car a lot too.
When I lived in Chicago I owned and drove M5, M6 the previous generation, a CLS63 and some 7's all winter. Snow tires they went through everything perfectly no need for AWD
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      02-03-2014, 10:29 PM   #44
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Somehow I find this question a bit pointless in my opinion. My wife drives a 640i GC and as fine a car as it is, it does not hold a candle to the M6 or any M for that matter. Forget the extra HP, that's besides the point. The driving dynamics in the Ms are what it is all about, if you can't appreciate that then the M6 is just not for you (my wife included). The CF roof holds a practical purpose, it's not just there to look at (and I have to say on the F13 it's the best looking roof I've seen on a GT). The adaptive suspension, steering, throttle response have all been meticulously designed and optimized for each style of driving. And the M-DCT is the perfect pair for the S63TU. How can anyone prefer an 8 speed (torque converter) automatic to an automated dual clutch for sports driving? Enough of the aggressiveness was lost in phasing out the SMG III anyways, and yet with the smoothness of the M-DCT the M6 is finally every bit as good for daily driving as the non-M cars. For as much "spice" as M cars have lost over the years they are still the finest cars BMW produces. Every time I get a loaner it spends it's time garaged. There is just no going back. OP, if you simply want to get from point A to point B in a fine German automobile then get the 650i, you'll love it, but if you're looking to DRIVE, to really be immersed in an experience and be in control, then you know where to look. I'm sure by now you know exactly what you're looking for in a car and why.
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