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F10 550i sports transmission
I am about to order F10 550i ED.
I need to make a selection between steprtonic 8 speed and sports transmission.
There are mixed information confuse me:
BMW configurator says "6" speed sports automatic,
My CA says difference between two is only with or without paddle shift,
BMW overview and european brochure says 8 speed sports automatic.
Can anyone tell which story is correct for US model?
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