The RR is so way better looking on the outside and comes with the extra-ness of the RR name. Just my opinion, people love RR's. to me, Porsche and RR are like a quarter step above MB/Audi/BMW in terms of branding and the cost reflects that.
But, if you had to actually spend money on one, the BMW is objectively better, more usable, and more reliable.
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328i -> 535i -> X5 -> 540i -> Lexus LC500
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