Mercedes-AMG GLC 53 Review: The Return of the Six-Cylinder Engine! (2026)

Get ready for a thrilling ride as Mercedes-AMG brings back the roar of six cylinders! A bold move that's sure to ignite passion among car enthusiasts.

Mercedes has listened to the cries of its AMG fans and is making amends by reintroducing larger engines under the hood. And it's not just any engine - it's a turbocharged 3.0-liter inline-six, a true powerhouse.

The new GLC 53 is a welcome change from the controversial four-cylinder models, offering a more satisfying driving experience. But here's where it gets interesting: the GLC 53 packs a punch with an impressive 443 hp and 443 lb-ft of torque, and it can even reach 472 lb-ft with an overboost function! That's a significant upgrade from its CLE 53 predecessor.

AMG has worked its magic on the "M256M" engine, updating various components like the cylinder head, intake camshaft, intercooler, and intake system. These modifications result in a more powerful and efficient engine, delivering an exhilarating driving experience.

The GLC 53 is available in two stylish versions: the standard model and the "Coupe" with a sleek, sloped roofline. Both variants offer lightning-fast acceleration, reaching 60 mph in just 4.1 seconds. And with the AMG Dynamic Plus Package, you can unleash the full potential, topping out at an impressive 167 mph.

To celebrate the return of the six-cylinder engine, Mercedes has equipped the GLC 53 with a new exhaust system featuring special resonators. This enhancement delivers a deeper, more satisfying exhaust note, a true treat for the senses.

Under the hood, a nine-speed torque-converter automatic transmission ensures smooth power delivery to all four wheels. Additionally, an optional electronically limited-slip differential provides even more control and precision.

But wait, there's more! The GLC 53 is the first Mercedes crossover to offer a drift mode, allowing for some tail-happy fun. And the best part? Rear-wheel steering is standard, providing an enhanced driving experience at lower speeds.

While the GLC 53 isn't the first six-cylinder model in this generation, it's a significant step towards a more powerful and diverse lineup. With the upcoming C53, Mercedes is set to offer a six-cylinder engine in the C-Class for the first time in the W206 era.

Pricing details are yet to be revealed, but it's expected to fall between the GLC 43 and GLC 63, offering an attractive option for those seeking a balance between performance and affordability.

Motor1's Take: The GLC 53 may not bring back the iconic V8, but it's a step in the right direction. It showcases Mercedes' commitment to delivering a diverse range of performance options. And with a new V8 in development and the V12 still going strong in the S-Class, Mercedes is sending a clear message: combustion engines are here to stay.

In a world where electric vehicles are gaining traction, Mercedes is reminding us of the thrill and excitement that only a powerful combustion engine can deliver. While EVs continue to grow, Mercedes recognizes the enduring appeal of traditional engines.

So, what's your take on the GLC 53? Do you think it's a wise move by Mercedes? Or do you prefer the V8? Join the discussion in the comments and let us know your thoughts! We'd love to hear from you!

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  • The Motor1.com Team
Mercedes-AMG GLC 53 Review: The Return of the Six-Cylinder Engine! (2026)

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