This specific engine, gearbox and all-wheel-drive set-up appeared in the M5 first, but has now spread to the BMW M8 and X5M/X6M twins. Many of the Competition’s upgrades have been concentrated ...

At a few hundred quid shy of £90k, the M5 aligns almost exactly with the AMG E63 S. It’s clearly the car that BMW set out to beat, and they haven’t quite managed it. It doesn’t have the ...