The Mercedes-Benz CLS 63 AMG Shooting Brake (X218), produced from January 2013 to June 2014, represented a unique offering in the luxury performance wagon segment. Based on the CLS Shooting Brake body style – a sleek, coupe-like estate – the 63 AMG variant brought the formidable power of Mercedes’ 5.5-liter biturbo V8 engine to a practical, albeit opulent, package. Positioned as the flagship of the CLS Shooting Brake range, it catered to buyers seeking both exhilarating performance and the versatility of a wagon. It was part of the X218 generation, which itself was a significant departure from traditional estate car designs, aiming for a more emotionally driven aesthetic.
Technical Specifications
| Brand | Mercedes-Benz |
| Model | CLS |
| Generation | CLS Shooting Brake (X218) |
| Type (Engine) | AMG CLS 63 V8 (557 Hp) AMG SPEEDSHIFT MCT |
| Start of production | January, 2013 |
| End of production | June, 2014 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (NEDC) | 14 l/100 km (16.8 US mpg, 20.2 UK mpg, 7.1 km/l) |
| Fuel consumption (economy) – extra urban (NEDC) | 7.8 l/100 km (30.2 US mpg, 36.2 UK mpg, 12.8 km/l) |
| Fuel consumption (economy) – combined (NEDC) | 10.1 l/100 km (23.3 US mpg, 28 UK mpg, 9.9 km/l) |
| CO2 emissions (NEDC) | 235 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 4.3 sec |
| Acceleration 0 – 62 mph | 4.3 sec |
| Acceleration 0 – 60 mph | 4.1 sec |
| Maximum speed | 250 km/h (155.34 mph), Electronically limited |
| Emission standard | Euro 5 |
| Weight-to-power ratio | 3.4 kg/Hp, 296.3 Hp/tonne |
| Weight-to-torque ratio | 2.6 kg/Nm, 383 Nm/tonne |
| Power | 557 Hp @ 5500 rpm |
| Power per litre | 102 Hp/l |
| Torque | 720 Nm @ 1750-5250 rpm (531.04 lb.-ft. @ 1750-5250 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | M 157.981 |
| Engine displacement | 5461 cm3 (333.25 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 98 mm (3.86 in.) |
| Piston Stroke | 90.5 mm (3.56 in.) |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 8.5 l (8.98 US qt | 7.48 UK qt) |
| Kerb Weight | 1880 kg (4144.69 lbs.) |
| Max. weight | 2530 kg (5577.7 lbs.) |
| Max load | 650 kg (1433 lbs.) |
| Trunk (boot) space – minimum | 590 l (20.84 cu. ft.) |
| Trunk (boot) space – maximum | 1550 l (54.74 cu. ft.) |
| Fuel tank capacity | 66 l (17.44 US gal | 14.52 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Length | 4956 mm (195.12 in.) |
| Width | 1881 mm (74.06 in.) |
| Width including mirrors | 2075 mm (81.69 in.) |
| Height | 1416 mm (55.75 in.) |
| Wheelbase | 2874 mm (113.15 in.) |
| Front track | 1622 mm (63.86 in.) |
| Rear (Back) track | 1605 mm (63.19 in.) |
| Drag coefficient (Cd) | 0.31 |
| Minimum turning circle | 11.3 m (37.07 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission AMG SPEEDSHIFT MCT |
| Front suspension | Coil spring, Independent multi-link suspension, Transverse stabilizer |
| Rear suspension | Independent multi-link suspension, Air suspension, Transverse stabilizer |
| Front brakes | Ventilated discs, 360×36 mm |
| Rear brakes | Ventilated discs, 360×26 mm |
Powertrain & Engine Architecture
At the heart of the CLS 63 AMG Shooting Brake lies the M157.981 5.5-liter biturbo V8 engine. This engine, a cornerstone of AMG’s performance lineup during this period, featured direct fuel injection, a sophisticated dual-turbocharging system, and a cylinder deactivation system (AMG Cylinder Management) to improve fuel economy under light load. The engine produced 557 horsepower at 5500 rpm and a substantial 720 Nm (531 lb-ft) of torque available from a low 1750 rpm all the way to 5250 rpm. The ‘MCT’ in AMG SPEEDSHIFT MCT refers to a multi-clutch transmission, a seven-speed automatic that offered incredibly fast and precise gear changes. Unlike a traditional torque converter automatic, the MCT uses a wet clutch pack to connect the engine to the transmission, resulting in a more direct and sporty feel.
Driving Characteristics
The CLS 63 AMG Shooting Brake delivered a driving experience that blended impressive performance with a surprising degree of comfort. The 4.3-second 0-60 mph acceleration time was indicative of its potent power, but the MCT transmission and AMG-tuned suspension provided a level of control and refinement often lacking in similarly powerful vehicles. The gear ratios were optimized for both rapid acceleration and relaxed highway cruising. While not as raw or visceral as some dedicated sports cars, the CLS 63 offered a uniquely engaging experience for a wagon, making it a capable grand tourer. Compared to the standard CLS models, the 63 AMG offered a significantly more aggressive throttle response, firmer suspension, and a more pronounced exhaust note.
Equipment & Trim Levels
The CLS 63 AMG Shooting Brake came standard with a comprehensive array of luxury and performance features. Interior appointments included premium leather upholstery, AMG sport seats, aluminum pedal trim, and a sport steering wheel. Standard technology included a high-resolution infotainment system with navigation, a premium sound system, and a suite of driver-assistance features. Optional extras included carbon fiber trim, upgraded leather options, a head-up display, and advanced driver-assistance packages. The interior design was largely consistent with other CLS models, but with AMG-specific accents and detailing to emphasize its performance credentials.
Chassis & Braking
The CLS 63 AMG Shooting Brake featured a sophisticated chassis designed to handle its substantial power. The suspension utilized a multi-link setup at both the front and rear, with adaptive damping and air suspension on the rear axle. This allowed for adjustable ride comfort and improved handling. Braking duties were handled by large, ventilated discs at all four corners, providing ample stopping power. The AMG braking system, often specified as an option, featured even larger rotors and calipers for enhanced performance. The steering was a speed-sensitive rack-and-pinion system with electric power assistance, offering precise and responsive control.
Market Reception & Comparison
The CLS 63 AMG Shooting Brake was generally well-received by automotive critics, who praised its unique blend of performance, luxury, and practicality. However, its high price tag and somewhat niche appeal limited its sales volume. Compared to other high-performance wagons, such as the Audi RS6 Avant or the BMW M5 Touring (not officially sold in the US during this period), the CLS 63 offered a more luxurious and stylish alternative, but perhaps lacked the ultimate track-focused performance of its rivals. Fuel economy, while respectable for a vehicle of its performance, was still relatively high at around 23.3 US mpg combined. Reliability was generally good, typical of Mercedes-Benz products, but maintenance costs were substantial due to the complexity of the engine and drivetrain.
Legacy
The CLS 63 AMG Shooting Brake remains a desirable vehicle in the used car market, particularly for enthusiasts seeking a unique and high-performance wagon. The M157 engine, while complex, has proven to be relatively durable with proper maintenance. Common issues include potential oil leaks and occasional problems with the turbochargers, but these are generally addressable. The AMG SPEEDSHIFT MCT transmission is also generally reliable, but requires regular fluid changes. The CLS 63 AMG Shooting Brake represents a bold and innovative design that continues to stand out from the crowd, solidifying its place as a modern classic.
