a unit that produces 616bhp and 553lb ft of torque in M5 Competition form. This clearly wasn’t enough for G-Power or its customers, so the tuner has applied both software and hardware changes to ...

However, BMW received mixed reactions when it presented the brand-new M5 (code name G90). While few could argue with immense firepower coming from the 4.4-liter, twin-turbo V8, which pushed out ...

Photo: SH Proshots While that may seem a bit overkill, the M5 needs plenty of torque in order to move its 5,390 pounds (2,445 kilograms). The wagon-bodied sibling is heavier still, with BMW ...