However, aftermarket tuners can extract more from the M5. Case in point: this BMW M5, tuned by G-Power. The German tuning firm specializes in BMWs, such as the 800-hp BMW X5 M with carbon fiber ...

It’s the most focussed, sharpest driving BMW 5 Series you can buy, that ability having a slightly detrimental effect on the overall ride quality, but one that’s well worth it for the agility and ...