The lambo can pull it off because it is a loud and brash car. It drives around screaming for attention. A X5 does not. Now if you dumped the X5, threw on fender flares, and put on 20+ wheels that are at least 10inches wide you might be onto something. But at stock height on 17s it just isn't going to cut it.

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03 3.0i mt
89 325is