The Mercedes-AMG GLC 53 SUV and Coupe have been unveiled, marking a significant shift in the brand’s strategy. This new model effectively replaces both the previous GLC 43 and GLC 63 S E Performance, signaling AMG’s decision to move away from controversial four-cylinder engines and embrace larger-capacity power plants. The move is significant because it acknowledges consumer preferences for larger engines, and simplifies the AMG model range.
The Engine: A Refined Inline-Six
At the heart of the GLC 53 lies a 3.0-liter inline-six cylinder petrol engine, already proven in the CLE 53 Coupe and Convertible. However, AMG hasn’t simply dropped it in; substantial mechanical upgrades have been applied to maximize responsiveness. These include revised cylinder heads with new camshafts, an enlarged air intake, and a high-performance intercooler.
The engine’s turbocharger and 48V mild-hybrid system have also been refined. The ISG (integrated starter generator) and the electrically driven supercharger work together to minimize turbo lag and provide a wider power band. Notably, the supercharger is now 50% more powerful than in previous AMG models.
Performance Figures and Dynamics
The engine produces 442bhp, with an additional 22bhp from the ISG, resulting in peak torque of 600Nm (640Nm during 10-second overboost). Acceleration from 0-62mph takes 4.2 seconds, with a limited top speed of 155mph (174mph with the AMG Driver’s Package). These numbers position the GLC 53 firmly in high-performance territory.
To enhance the driving experience, AMG has fitted an exhaust system with a new resonator and offers an optional AMG Real Performance Sound package for a more aggressive exhaust note. Fuel efficiency is rated between 30.7mpg and 28.5mpg, depending on body style and wheel choice.
Handling and Chassis Upgrades
The GLC 53 uses AMG’s 9G TCT nine-speed automatic transmission, paired with an all-wheel-drive system biased toward the rear. A Drift Mode allows for purely rear-wheel-drive operation, aided by an electronically controlled limited-slip differential on the rear axle.
Additional upgrades include rear-wheel steering and enhanced braking with 390mm front and 360mm rear discs, along with four-piston front calipers. These ensure ample stopping power for spirited driving.
Styling and Pricing
Exterior styling changes are minimal, aligning with the previous GLC 43, though new color, wheel, and trim options are available. The interior remains unchanged, featuring AMG’s user interface for the touchscreen and driver’s display.
Pricing in the UK has not been announced, but estimates suggest the GLC 53 will be positioned between the old GLC 43 and 63 models, likely around £80-100,000 depending on specification. This places it above competitors like the BMW X3 M50, Audi SQ5, and petrol-engined Porsche Macan GTS.
The GLC 53’s return to a six-cylinder engine is a direct response to market demand and a strategic move by AMG to refine its performance lineup. By focusing on larger displacement engines, AMG is aligning itself with enthusiasts who prefer the traditional AMG driving experience.
