Mercedes-AMG S 65 Cabriolet gallery

Mercedes-AMG has a new V12 monster, and what better way to hear all twelve of those cylinders in action than in a convertible. The S 65 Cabriolet takes a frankly ridiculous 6.0 liter V12, matches it to a 7-speed auto transmission, and then spits 737 lb-ft. of torque down through the rear wheels.

Horsepower is a whopping 621 HP, and Mercedes-AMG says the drop-top marvel will hit 62 mpg in a measly 4.1 seconds.

If you want to unlock the 186 mph – still electronically limited, mind – top speed you'll need the AMG Driver's package, which lifts it from the 155 mph it's normally capped at.