A REVIEW ON 2021 Mercedes-AMG GLS-Class

 

The performance-tuning geniuses at Mercedes-AMG have finally been let loose on the new GLS-class SUV, and from those solid bones they've created the 2021 GLS63.

Powered by a fire-breathing 603-hp twin-turbo V-8, luxuriously appointed, and spacious it offers commodious accommodations for the family that wants to travel rapidly—really, really rapidly. Mercedes-AMG has thrown all the tech features it has at the GLS63, including dual 12.3-inch infotainment displays, an available semi-autonomous driving mode, and a 48-volt hybrid system to help the big SUV's performance. What brand of performance is that? The kind that enables it to accelerate like a rocket, V-8 engine roaring. This beast is a heads-up competitor to other oversized hot-rods such as the BMW X7 M50i and the Range Rover SV Autobiography—and comes with a price tag to match.

        What's New for 2021?

The GLS63 is all-new for 2021, arriving after a brief pause when the previous generation ended production after the 2019 model year.

Engine, Transmission, and Performance
Under the hood of the GLS63 is a twin-turbocharged 4.0-liter V-8 engine that makes a whopping 603 horsepower with the help of a 48-volt hybrid system. All-wheel drive is standard, as is a nine-speed automatic transmission and air suspension. We were blown away by the 2021 GLS63's performance at our test track as it out-accelerated several hot sports cars we've tested recently, tearing off a blistering 3.6-second zero-to-60-mph run. For comparison, the old GLS63—which made a mere 577 horsepower—managed a none-too-shabby 4.3-second zero-to-60-mph run. As impressed as we were with the GLS's acceleration, we can't say the same for its driving dynamics. The ride is firm, especially on the optional 23-inch wheels, but that firmness doesn't translate to a feeling of precision when cornering. The GLS's body bobs across road undulations more than expected, though it still offers plenty of grips to have some fun with on a twisty road.