The M boss admits BMW's performance division "underestimated" how people on Facebook, Instagram, and other social networks obsessed over the M5's shockingly high curb weight. But the Bavarian ...

When the E34 M5 was launched in 1992 BMW claimed this world-beating supersaloon ... it soaked up lumps with surprisingly little body roll. The 3.6-litre straight-six has a smooth delivery but ...