why no adaptive drive option for 640 GC
Hello.
I'm considering a 6 GC as I'm about to step out of my '11 e92 M3.
Going to test drive both 640 and 650 GC this saturday.
was looking at standard equipment sheets for both cars.
They all show "sport suspension" as standard.
but while building a 650, I see the option for "Adaptive Drive".
I do not see that option for 640.
Is this a superior suspension/handling option?
and why isn't it available for the 640?
thank you in advance.
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