Mercedes Raises the Bar With an All-New Super Sedan

The Geneva Motor Show will also see the debut of two new Mercedes-Benz pre-production models that, for the first time, combine newest-generation diesel technology with the 9G-TRONIC 9-speed hybrid transmission. Depending on which package buyers choose, the four-door GT's interior can either look like a luxury sedan with its quilted leather and wood trim, or it can double down on the sportiness with carbon fiber trim, yellow seatbelts, contrast stitching, and sports seats. The GT 63 and GT 63 S will start rolling out in early 2019, with the GT 53 following sometime mid-year.

From the hardcore Mercedes-AMG GT R to the base-but-relevant Mercedes-AMG GT, the sports vehicle range might not be as wide as the 911's but in that price bracket it has something for everyone. Frameless side windows preserve the lines of the AMG coupe, while the rear gets slim LED taillamps and a large rear spoiler.

Three trims are on offer: SE, Sport and AMG Line. The new Supersport view adds AMG-specific information. However, instead of fixed buttons, the new console uses colour display buttons, with capacitive switches for audio volume and the various driving modes. Why the big drop in power compared to the two 63 models? The GT 63 features a 577- hp, twin-turbocharged 4.0-liter V-8 that puts out 553 pounds-feet of torque.

At the heart of the AMG GT are one of two engines, including an all-new turbocharged 3.0-liter inline-6 that generates 429 horsepower. It will have an electric EQ Boost feature enabled by a starter-alternator between the engine and transmission offering additional output of 21 hp.

Mercedes says that the AMG GT 53 is capable of accelerating from zero to 60 miles per hour in just 4.4 seconds and will reach a top speed of 174 miles per hour. The four-door AMG GT 53 accelerates from zero to 60 miles per hour in just 4.4 seconds and has a top speed of 174 miles per hour. It estimates the AMG 53 at 4.4 seconds. In addition, the V8-equipped models are available with active rear-wheel steering for improved handling prowess. The more powerful S version also comes with active engine mounts, which are optional in the regular 63 version.

The bottom of the range begins with an entry-level 429bhp GT 53 4Matic+. The eight-cylinder models use multichamber air suspension. High-performance ceramic brakes are available for the V-8 models. They are: Slippery, Comfort, Sport, Sport+, Race and Individual.

Still to come, at least we expect so, is the 800bhp hybrid GT 4D, but for now you'll be limited to just the two V8s in the United Kingdom when the AMG GT four-door goes on sale in the summer. Yes, it's the 630bhp GT 63 S 4Matic+ that sits at the top of the range. It also now includes an automatic lane-change function.

  • Carolyn Briggs