no clue. The F80 is like this too. the ratios don't make much sense for the dct and seem to be better for the manual. 1st gear on the dct is short and useless, and 7th gear is just an overdrive gear. My guess is that they made 1st gear short on these cars to prevent people riding the clutch in low speed situations ? but idk.
https://f80.bimmerpost.com/forums/sh...d.php?t=949959