Brian Harper: Is it possible to be mightily impressed at the performance of two of the fastest, most powerful — and mondo-expensive — crossovers ever to make it to series production, yet equally disconcerted at the result? On the one hand we have the BMW X6 M in its most extreme Competition form — replete […]

Brian Harper: Is it possible to be mightily impressed at the performance of two of the fastest, most powerful — and mondo-expensive — crossovers ever to make it to series production, yet equally disconcerted at the result? On the one hand we have the BMW X6 M in its most extreme Competition form — replete […]