Updates from the 550 include a renewed interior, but with substantial improvements mechanically, including bigger brake discs, a larger and more powerful engine, a different weight distribution, refined aerodynamics and fluid-dynamics and an adaptive suspension set-up (the four independent suspensions are also controlled by the gearbox, to minimize pitch throughout the 200-milliseconds shift time). Two six-speed transmissions are available, a conventional manual gearbox and, for the first time on a Ferrari V12, Magneti Marelli's semi-automatic (Electrohydraulic manual) 'F1' gearbox. The model number refers to total engine displacement in litres, whilst the 'M' is an abbreviation of 'modificato' or 'modified'.