NEW YORK — Take the recently introduced Mercedes-Benz C-Class Cabriolet convertible, stuff AMG's mighty twin-turbo V8 engine under its hood, take it to the gym to bulk up its body and there you essentially have the 2017 Mercedes-AMG C63 Cabriolet.
Available in 469-horsepower C63 and 503-hp C63 S guises, the Cabriolet mirrors the top-of-the-line performance model range of the C-Class sedan. Mercedes estimates both models are capable of going from zero to 60 mph in around 4 seconds. The S model's extra power should certainly be felt, but the traction limitations of its rear-wheel-drive layout make sprints from a stop a difficult way to quantify the two models' differences.
Besides its big, hand-built engines bellowing through its special variable sound exhaust, you'll be able to tell the C63 Cabriolet apart from its lower trim siblings by its bulkier fenders. Besides creating a more macho look, they also show the AMG's extra width (2.5 inches at the front, 2.6 inches wider in the rear) that should grant it greater road-holding ability. So, too, should its standard adaptive suspension that features three settings: Comfort, Sport and Sport+.
Other mechanical differences include dynamic engine mounts, effective at reducing vibration but maintaining the agility benefits of stiffer mounts, and a limited-slip differential that is mechanical on the C63 and a more advanced electronic one on the C63 S. These aid traction when powering through corners. The seven-speed Speedshift automatic transmission is special to AMG as well, featuring the same array of settings as the suspension, plus a Race mode on the C63 S. Bigger standard brakes and optional carbon-ceramic ones round out the performance-improving highlights.
Some of these added elements are also available on the AMG C43 Cabriolet, which "makes do" with a 362-hp 3.0-liter twin-turbo V6.
Look for the AMG C63 Cabriolet in dealerships starting in fall 2016.
Edmunds says: All the speed and noise of an AMG C63, but with the ability to roll back the roof. Sounds fun.