Since BMW introduced the M badge for their sporty models below the actual M cars, you regularly hear people complain about the fact that non-M cars shouldn’t have the sacred M-letter in their badge, just like it is the case with the facelifted M550i. But this “normal” 5 series comes with better performance than the legendary E60 V10 M5 with its F1-derived engine.

Watch the full video to see our RaceChip GTS Black boosting this business saloon to almost 600 HP.