Since you are asking about cornering, I'm going on the assumption that you do care about the handling and want to be able to drive spirited...with that being said, I think DDC would be worth it...unless you are open to going with aftermarket springs or coilovers, that might be a better option. It all comes down the personal expectations of how you want to handle for your usage.
I came from an M3 with KW coilovers, so the non-DDC suspension was just too soft and un-responsive to me. The Sport mode settings are an improvent, but I still installed springs as well..but that's partly due to wanting a lower ride height too.
I would have gotten coilovers right off the back, but since the DDC has the electronic control feature, I just went with springs for now.
Hope that helps...
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Will -
'23 Alpine White G26 ///i4 eDrive40 M Sport
'23 Brooklyn Grey G20 ///330e M Sport
'20 Alpine White F97 ///X3MC
'20 Alpine White F39 ///X2 M Sport X
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