Feature Flick: 2014 Mercedes-Benz CLS63 S AMG Tested On Ignition

It's been several years since the Mercedes-Benz CLS-Class ushered in the era of four-door "coupes" that engendered the Audi A7 and BMW 6 Series Gran Coupe, and now the folks at Motor Trend are testing the fastest CLS-Class yet. With 577 hp under the hood, the 2014 Mercedes-Benz CLS63 S AMG is put to the test on the newest episode of Ignition.

Host Carlos Lago admits that the 2014 Mercedes-Benz CLS63 S AMG is almost identical to the E63 S AMG sedan -- at least under the hood -- but that the main distinction is the design. Although the CLS-Class's chopped, coupe-like roofline reduces rear headroom, Lago opines that this graceful four-door is prettier than its boxy sedan progenitor.

"So you buy this car for the styling cues, not for any added functionality," he says. "But I do like the looks of this car versus the [Mercedes-Benz] E63."

At the test track, the twin-turbo 5.5-liter V-8 engine helps the 2014 Mercedes-Benz CLS63 S AMG power its way to 60 mph in just 3.4 seconds and on through the quarter-mile in 11.7 seconds at 122.7 mph. Because this is a CLS63 S AMG, the engine produces an extra 27 hp and 59 lb-ft of torque compared to that of a standard, non S-Model CLS63, helping improve the car's straight-line performance.

To see more of what Lago thinks of the 2014 Mercedes-Benz CLS63 S AMG, check out the full video below.

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