The Mercedes-Benz GLC 63 AMG Coupe (C253, facelifted in 2019) represents the high-performance variant of the GLC Coupe line, produced from 2019 through July 2023. Positioned as the flagship model within the Coupe range, it combines the practicality of a compact SUV with the aggressive styling and potent performance characteristic of the AMG division. This specific configuration, boasting a hand-built 4.0-liter twin-turbocharged V8 engine producing 476 horsepower, caters to buyers seeking a luxurious and exhilarating driving experience. It sits at the top of the GLC Coupe hierarchy, significantly outperforming the base models and even the GLC 43 AMG in terms of power and overall capability.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | GLC |
| Generation | GLC Coupe (C253, facelift 2019) |
| Type | AMG GLC 63 V8 (476 Hp) 4MATIC+ MCT |
| Start of production | 2019 |
| End of production | July, 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe, SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption at Low speed (WLTP) | 12.5 l/100 km (18.8 US mpg, 22.6 UK mpg, 8 km/l) |
| Fuel consumption at very high speed (WLTP) | 12.9 l/100 km (18.2 US mpg, 21.9 UK mpg, 7.8 km/l) |
| CO2 emissions (WLTP) | 283-293 g/km |
| Fuel consumption (economy) – urban | 16.8-17.4 l/100 km (14 – 13.5 US mpg, 16.8 – 16.2 UK mpg, 6 – 5.7 km/l) |
| Fuel consumption (economy) – extra urban | 9.0-9.5 l/100 km (26.1 – 24.8 US mpg, 31.4 – 29.7 UK mpg, 11.1 – 10.5 km/l) |
| Fuel consumption (economy) – combined | 12.1-12.3 l/100 km (19.4 – 19.1 US mpg, 23.3 – 23 UK mpg, 8.3 – 8.1 km/l) |
| CO2 emissions | 275-280 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4 sec |
| Acceleration 0 – 62 mph | 4 sec |
| Acceleration 0 – 60 mph | 3.8 sec |
| Maximum speed | 270 km/h (167.77 mph) |
| Emission standard | Euro 6d-TEMP-EVAP-ISC |
| Weight-to-power ratio | 4.1 kg/Hp, 244.7 Hp/tonne |
| Weight-to-torque ratio | 3 kg/Nm, 334.2 Nm/tonne |
| Power | 476 Hp |
| Power per litre | 119.5 Hp/l |
| Torque | 650 Nm @ 1750-4500 rpm (479.42 lb.-ft. @ 1750-4500 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 177 DE 40 AL |
| Engine displacement | 3982 cm3 (243 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Kerb Weight | 1945 kg (4287.99 lbs.) |
| Max. weight | 2590 kg (5709.97 lbs.) |
| Max load | 645 kg (1421.98 lbs.) |
| Trunk (boot) space – minimum | 500 l (17.66 cu. ft.) |
| Trunk (boot) space – maximum | 1400 l (49.44 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal, 14.52 UK gal) |
| Permitted trailer load with brakes (12%) | 2200 kg (4850.17 lbs.) |
| Length | 4748 mm (186.93 in.) |
| Width | 1890 mm (74.41 in.) |
| Width including mirrors | 2096 mm (82.52 in.) |
| Height | 1578 mm (62.13 in.) |
| Wheelbase | 2873 mm (113.11 in.) |
| Front track | 1685 mm (66.34 in.) |
| Front overhang | 848 mm (33.39 in.) |
| Rear overhang | 1028 mm (40.47 in.) |
| Ride height (ground clearance) | 159 mm (6.26 in.) |
| Approach angle | 14° |
| Departure angle | 18.8° |
| Ramp-over (brakeover) angle | 13.9° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 9 gears, automatic transmission AMG MCT SPEEDSHIFT |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 235/55 R19; 255/50 R19 |
| Wheel rims size | 8J x 19; 9J x 19 |
Powertrain & Engine Architecture
At the heart of the AMG GLC 63 Coupe lies the M177 DE 40 AL 4.0-liter V8 engine. This engine, hand-assembled in Affalterbach, Germany, utilizes a “hot-vee” configuration, meaning the turbochargers are located within the V of the engine block. This design minimizes turbo lag and improves responsiveness. The engine employs direct fuel injection, delivering fuel directly into the combustion chambers for precise control and increased efficiency. It also features a multi-spark ignition system for optimal combustion. The engine is paired with the AMG SPEEDSHIFT MCT 9-speed automatic transmission. Unlike a traditional torque converter automatic, the MCT (Multi Clutch Technology) uses a wet start-off clutch instead of a torque converter, resulting in quicker shifts and a more direct connection to the engine. This transmission is specifically tuned for performance, offering various driving modes including Comfort, Sport, Sport+, and Race.
Driving Characteristics
The AMG GLC 63 Coupe delivers a markedly different driving experience compared to lower-trim GLC Coupes. The 476 horsepower and 650 lb-ft of torque provide exhilarating acceleration, achieving 0-60 mph in around 3.8 seconds. The 9-speed MCT transmission contributes to this performance with rapid and precise gear changes. While the all-wheel-drive system (4MATIC+) provides excellent traction, the car still exhibits a rear-biased feel, enhancing driving engagement. The suspension is tuned for performance, offering a firm but controlled ride. Compared to the GLC 43 AMG, the 63 offers a significant power increase and a more aggressive exhaust note, resulting in a more visceral and sporty experience. The gear ratios are optimized for both acceleration and high-speed cruising, making it a capable grand tourer as well.
Equipment & Trim Levels
The AMG GLC 63 Coupe came standard with a comprehensive suite of features, including AMG-specific styling elements (body kit, exhaust system), a sport-tuned suspension, and high-performance brakes. The interior featured sport seats upholstered in Nappa leather with AMG badging, a flat-bottom steering wheel, and aluminum paddle shifters. Standard technology included a large infotainment display with Apple CarPlay and Android Auto integration, a premium sound system, and a suite of driver-assistance features such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. Optional extras included carbon fiber trim, a head-up display, and a panoramic sunroof.
Chassis & Braking
The chassis of the AMG GLC 63 Coupe is reinforced to handle the increased power and torque. It features AMG-tuned adaptive dampers that adjust to road conditions and driving style. The braking system consists of large, ventilated discs on all four wheels, with AMG-branded calipers. The front brakes typically measure 390mm in diameter, while the rear brakes measure 360mm. The 4MATIC+ all-wheel-drive system is fully variable, allowing for a dynamic distribution of torque between the front and rear axles, optimizing traction and handling.
Market Reception & Comparison
The AMG GLC 63 Coupe was generally well-received by automotive critics, praised for its powerful engine, engaging driving dynamics, and luxurious interior. However, some reviewers noted its firm ride quality and relatively high fuel consumption. Compared to rivals such as the Porsche Macan Turbo, the GLC 63 offered a more spacious interior and a more comfortable ride, but the Macan was often lauded for its sharper handling. Fuel economy, as indicated by the WLTP figures, was a significant drawback, with combined consumption averaging around 19 mpg. Reliability was generally good, typical of Mercedes-Benz products, but the complex engine and transmission required diligent maintenance.
Legacy
The AMG GLC 63 Coupe (C253) represents a compelling blend of performance, luxury, and practicality. While its fuel economy and running costs are relatively high, it remains a desirable vehicle in the used car market, particularly for enthusiasts seeking a high-performance SUV. The M177 engine is known for its durability when properly maintained, and the AMG SPEEDSHIFT MCT transmission provides a unique and engaging driving experience. The model solidified Mercedes-AMG’s position as a leader in the high-performance SUV segment, and its design cues continue to influence subsequent AMG models.
