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Mercedes-Benz S-Class Cabriolet
That’s how long it takes for the Mercedes Benz S-Class Cabriolet to transform from a docile, luxurious soft-domed coupe to a chrome-fanged, open-air dream cruiser.
The AMG S 63 offers a 577-horsepower, 5.5-liter V8 bi-turbo engine with 664 lb-ft of torque (!) while the S 550 is powered by a duly capable 449-horsepower, 4.7-liter V8 with 516 lb-ft of torque. The AMG offers a mind-numbing 0-60 time of 3.9 seconds and the S 550 clocks in at a more than adequate 4.5 seconds.
The AMG gets the proactive, anxious MCT 7-speed automatic transmission while the S 550 has the more palatable, forgiving 9G-Tronic 9-speed transmission.