The Porsche is dynamically superior in a way an E8x will never be. Ever.
With that said, other factors are at play here. For a DD, i'd prefer the BMW. More torque, more efficient, more comfortable, non P-Car repair bills despite the N54 being a joke and a half reliability wise.
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E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP
F30 N55 XDrive EBII
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