Does 2010 M6 Vert Have Double Clutch SMG?
I am interested in a 2010 M6 Convertible with 22K miles on it. Test drove it today with the wife and we both loved it.
The car had oodles of positives, especially that freaking awesome exhaust note. But it had two negatives: a) small trunk, and b) the SMG transmission seemed slow. That is, when it shifted, there was a noticeable loss in power (at least it felt that way) until the shift was complete (and it seemed slow, much slower than I expected).
So I can see for day-to-day driving, this might become annoying. I currently drive a 2008 535xi automatic and it shifts really smooth.
Was the double-clutch SMG an option for 2010 and so perhaps this car doesn't have it? Or, is there anything I can do or settings on the car I can use to make the transmission shift faster? I can go back in for another test drive to check these things out.
No, this gen M6 only came with single-clutch SMG (or 6-speed MT). The SMG takes getting used to, but can be satisfying once you understand what is going on. I came from a 545i with 6MT, so as long as you look at the M6 as a single-clutch manual tranny, you will understand that it releases power when the clutch is pushed in and then re-applies power with the clutch is let out, just like you would do with your own clutch pedal. Now, this is the part that is somewhat confusing, but the shifting speed is primarily dependent on the throttle position: light throttle->slower shifts, deep into the throttle->faster shifts, regardless of car speed. The throttle position is the key factor. You can control the shift speed somewhat with the settings 1 to 5 (6), but still the throttle is the main factor. It will never shift as smoothly as an auto or a dual-clutch, but that was the design decision from the M engineers.
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