The best or nothing indeed.
The Mercedes S 63 AMG with a matte Allanite Grey Magno exterior.

The Mercedes S 63 AMG with a matte Allanite Grey Magno exterior.

There it was, a wide-open backcountry road in Evans, Georgia, where Mercedes equipped us with one of their most powerful cars in the stable, the S 63 AMG Cabriolet. The end of that road was visible in the distance, but once you stomped the pedal and fired the pistons of that hand-built 4.0L, 603-hp AMG V-8, the S 63 4Matic+ locked onto the asphalt like it was a railway track and propelled itself to the other side of the road like a bullet train. 0-60 happens in 3.4 seconds, which is .1 second quicker than the AMG GT R.

What was happening inside was equally as dramatic. In the driver's seat, you're wrapped in leather, carbon fiber, and smoothly-finished metals. On one side of the dual set of 12.3-inch widescreen displays, AMG-specific graphics lit up like Christmas showing off horsepower and boost metrics in real time while the 24-speaker, 1,190-watt, Burmester 3D sound system filled the cabin with the kind of sound you would expect from a high-end home hi-fi system. 

The S 63 features a fully digital dashboard.

The S 63 features a fully digital dashboard.

When the traffic increased and the opportunities for spirited driving lessened, the S 63's interior turned into a zen-like atmosphere at the press of a button. Called Energizing Comfort Control, the feature mixes massage, fragrance, and even music to calm and relax. There's even a 64-color LED ambient lighting system to get the mood just right. 

Though the interior is an incredibly comfortable place to be, much of that comfort can be attributed to the AMG Adaptive Sport Suspension, which is based on their AIRMATIC system, but with sportier tuning. This can also be changed instantly with modes like Comfort, Sport, Sport+, and Race. 

A set of Swarovski crystals sit atop the LED headlights.

A set of Swarovski crystals sit atop the LED headlights.

The details, both big and small are hard to miss. From the vertical lines of the AMG-style grille to the OLED taillights and one of the wildest details we've seen on a car: Seventeen Swarvoski crystals that help illuminate the Daytime Running Lights and the 30 crystals that are set into the turn signals. We particularly enjoyed the AMG Carbon Fiber/Black Piano lacquer trim that covered the wraparound panels surrounding the cabin. 

There's also the sheer amount of technology and safety features that are so comprehensive that there are just too many to list for this article. A few of those standout features include Active Steering Assist that not only keeps you in your lane, but can also follow the car ahead if the lanes are hard to see. Two other impressive features include Crosswind Assist that increases vehicle stability in the event of strong winds and Night View Assist PLUS that uses thermal imaging to detect pedestrians and animals in darker environments.

The V12-powered S 65 in Emerald Green Metallic. 

The V12-powered S 65 in Emerald Green Metallic. 

Oh, and let's not forget the V12-powered S 65. Though it has a slower 0-60 time of 4.0 seconds, it makes up for in torque with a massive 738 lb-ft of torque, which is much more than most full-size trucks. And this is a luxury convertible we're talking about here. The V-12 model also gets some exclusive bodywork with chrome accents and chrome mesh on the front apron, chrome side sill inserts, and the quad trapezoidal tailpipes. 

The upper-end of the Grand Touring segment is only filled with a few vehicles and all of them are worthy of being categorized as a true luxury GT. When it comes to the S-Class Cabriolet, its competition doesn't come close to the amount of technology offered and combine that with AMG performance and the luxury you look for in an S-Class and it's a package that's quite hard to beat. 

From $179,500, mbusa.com

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