The M's driving characteristics vary greatly depending upon the model and trim. The V6-powered M35 has plenty of power to move the car, but seems to require constant throttle input...
... to keep the vehicle at cruising speed. The M45's torque-happy V8 is a much better match for this car. The five-speed automatic delivers quick, short shifts that, from a standing start, help launch the M with a sense of urgency rarely found in a large sedan.
The Sport model features an active rear suspension set-up that employs electronic actuators to help steer the rear wheels. The result is quite impressive, especially when running through tight S-curves and twisty back roads.