Beneteau offers one engine option for the MC6: a pair of 600-horsepower Cummins QSC 8.3 Zeus diesels. All the usual pod-drive advantages come with it, including vibration-free running, joystick maneuverability and immediate response to the helm. With this power configuration, the MC6 is quiet. Even at wide-open throttle, the sound meter on our test boat didn’t pass 75 dbA at the lower helm (65 decibels is the level of normal conversation). These motors offer a top speed of 28 knots at a fraction over 3,000 rpm. Running the engines at 2,750 rpm equates to a 24-knot cruise, while throttling back to 2,500 rpm reduces speed to 18 knots.