Mercedes-AMG is recalibrating its performance strategy for the GLC, reversing course on a controversial engine downsizing and returning to a six-cylinder configuration. The move, confirmed on , addresses criticism leveled at the previous generation GLC 63, which swapped a traditional V8 engine for a turbocharged four-cylinder.
The new AMG GLC 53 will feature a 3.0-liter turbocharged inline-six engine, a significant departure from the 2.0-liter four-cylinder previously employed. While the previous model utilized a hybrid powertrain, the GLC 53 will rely solely on the internal combustion engine, prioritizing a more visceral driving experience, according to the company.
Addressing Enthusiast Concerns
The decision to revert to a six-cylinder engine comes after a wave of criticism from automotive enthusiasts who found the four-cylinder engine lacking in character and performance befitting the AMG brand. The previous shift away from V8 and six-cylinder engines in the GLC lineup was widely seen as a cost-cutting measure that diluted the performance credentials of the vehicle. The new engine is expected to deliver a more satisfying auditory and driving experience.
Engine Specifications and Performance
The updated “M256M” engine produces 443 horsepower and 443 lb-ft of torque. An overboost function temporarily increases torque to 472 lb-ft for up to 10 seconds, providing an extra surge of power for acceleration. This represents a 30 lb-ft increase in torque compared to the CLE 53, from which the engine is derived. The engine also incorporates a revised cylinder head, intake camshaft, intercooler, and larger intake system to optimize performance.
Despite the larger engine, the GLC 53 achieves a 0-60 mph time of 4.2 seconds. This is slightly slower than the 3.8 seconds achieved by the outgoing GLC 63 S E Performance hybrid model. However, Mercedes-AMG emphasizes the enhanced driving dynamics and improved engine character as key benefits of the change.
New Features and Technology
The GLC 53 will be available in both SUV and Coupe body styles. A nine-speed torque-converter automatic transmission will be standard, paired with AMG’s 4Matic+ all-wheel-drive system. An optional electronically controlled limited-slip differential will be offered as part of the AMG Dynamic Plus package, which also includes a “Drift Mode” – a first for an AMG SUV – allowing drivers to disengage the front axle and experience rear-wheel drive dynamics.
Mercedes-AMG has also focused on enhancing the exhaust note of the GLC 53, incorporating “special resonators” into the new exhaust system to deliver a deeper, more engaging sound. The engine also features an electric auxiliary compressor to smooth the torque curve.
Market Implications and Future Outlook
The shift back to a six-cylinder engine in the GLC 53 signals a broader recalibration within Mercedes-AMG, acknowledging the importance of engine character and performance in maintaining brand appeal. The move comes as the automotive industry grapples with increasingly stringent emissions regulations and a transition towards electric vehicles. While the GLC 53 represents a step back from full electrification, it demonstrates a commitment to delivering a compelling internal combustion engine experience for enthusiasts.
The AMG GLC 53 is expected to go on sale in the U.S. In the second half of . Pricing has not yet been announced, but is expected to be competitive within the high-performance luxury SUV segment. The vehicle’s success will likely hinge on its ability to resonate with buyers who prioritize driving dynamics and engine character over outright speed and fuel efficiency.
