Exploring the 2018 AMG CLS 63 Mercedes Benz Performance

Technical Specifications and Performance Breakdown of the 2018 Mercedes-AMG CLS 63 vs. CLS 400

Detailed Technical Specifications Comparison

AMG-Tuned Performance Features and Their Impact on Driving Dynamics

• AMG Dynamic Steering
  The system varies steering ratio based on vehicle speed: 14.8:1 at low speeds (precise maneuverability) and 12.5:1 at high speeds (reduced effort during highway cruising). This reduces steering wheel rotations by ~15% at 60 mph compared to the CLS 400, improving stability during rapid direction changes.
• AMG Drive Select Modes
  The 9G-Tronic transmission integrates four drive modes (Comfort, Sport, Sport+, and Individual), each optimizing shift logic, throttle response, and launch control. Sport+ mode reduces shift times to 100 milliseconds and enables torque vectoring via the rear differential, improving oversteer control.
• AMG Exhaust Note and Sound Package
  The quad-tip exhaust system with stainless steel headers and linear resonator produces a deep, resonant growl (audible at 3,000 rpm). This is achieved through variable geometry valves that alter exhaust flow dynamics, enhancing the V8’s character without sacrificing refinement.
• AMG Launch Control
  When engaged, the system limits wheelspin by dynamically adjusting throttle, braking, and transmission shifts. Testing shows a 0.3-second reduction in 0–60 mph time when using launch control compared to standard acceleration. The system also integrates with four-wheel-drive (4MATIC) models for off-road performance
  

  

  Design and Styling Evolution of the 2018 Mercedes-AMG CLS 63

  The 2018 Mercedes-AMG CLS 63 represents a refined fusion of luxury sedan elegance and high-performance sportiness, marking a deliberate evolution from its predecessors. This model year introduced subtle yet impactful design refinements that underscored AMG’s commitment to aggressive aesthetics while maintaining the CLS’s signature four-door coupe silhouette. The exterior incorporated AMG-specific cues—such as a dominant front grille, LED lighting, and dual-exhaust systems—while the interior prioritized premium materials and sport-focused ergonomics. Below, the key design elements distinguishing the 2018 CLS 63 are analyzed, alongside a comparative visual breakdown and a chronological overview of its styling progression.
  

  Exterior Design Cues: AMG’s Signature Aesthetic Refinements

  The 2018 CLS 63’s exterior design emphasizes aggressive sportiness while retaining the CLS’s luxurious sedan proportions. Key visual distinctions from earlier generations include:

  - Front Fascia and Grille:
  The quadrenal grille (a hallmark of AMG models) features black mesh inserts with horizontal slats, enhancing airflow to the high-performance V8 engine. The grille’s width extends further outward compared to the CLS 400, with LED daytime running lights integrated into the lower bumper. The AMG badge is prominently mounted on the grille’s center, flanked by stylized kidney-shaped air intakes that channel air to the brakes and engine bay.

  - LED Lighting and Headlamps:
  The adaptive LED headlights (optional on higher trims) incorporate dynamic turn signals and high-beam assist, a feature rarely seen in non-AMG CLS models. The taillights adopt a three-dimensional LED signature with vertical slats, a design language borrowed from the AMG GT and C63 models. The rear LED strip beneath the license plate adds a sporty touch, while the active rear spoiler (on S 63 models) deploys at higher speeds for aerodynamic downforce.

  - Wheel Designs and Tires:
  The 20-inch AMG-specific alloy wheels feature five-spoke designs with carbon fiber accents and polished or matte finishes. The 22-inch option (on the S 63) introduces a multi-spoke pattern with vented brake cooling ducts, visible even without the wheels spinning. Tire choices range from Pirelli P Zero (for track performance) to Michelin Pilot Sport 4S (for daily drivability), with run-flat technology as standard.

  - Side Profile and Aerodynamics:
  The side skirts and lower body panels incorporate active aerodynamics, with adjustable air flaps that optimize downforce at high speeds. The C-pillar features a sleek, tapered design with LED turn signals, while the roof line remains low-slung, reinforcing the coupe-like stance. The dual-exhaust system (with quad-tip outlets) is a defining AMG trait, with stainless steel tips that contrast against the body’s paint-matched or anthracite finishes.

  - Rear Profile and Spoiler Integration:
  The rear bumper houses integrated rear diffuser and active aerodynamics, with LED tail lights extending into the C-pillar. The optional rear wing (on S 63 models) deploys automatically at speeds above 80 km/h (50 mph), generating 200 kg (440 lbs) of downforce at 200 km/h (124 mph). The license plate housing is chrome-finished, adding a premium touch.
  

  Interior Materials and AMG-Specific Craftsmanship

  The 2018 CLS 63’s interior blends luxury refinement with high-performance functionality, featuring materials and details exclusive to AMG models. The cabin prioritizes driver engagement through ergonomic placement, carbon fiber accents, and sport-tuned seating.

  - Seating and Upholstery:
  The AMG-specific sport seats incorporate ventilated and massaging functions, with quilted leather or Alcantara options. The front seats feature adjustable lumbar support, 12-way electric adjustments, and heated side bolsters for lateral support during spirited driving. The rear seats (when equipped) offer ventilation and massage functions, though they are fixed in position to prioritize front-seat space.

  - Dashboard and Instrument Cluster:
  The AMG-specific dashboard replaces the standard CLS’s soft-touch materials with aluminum and carbon fiber inlays, including a central display with AMG Performance 450 (a 12.3-inch touchscreen with three-dimensional graphics for performance data). The instrument cluster adopts a digital display (optional) with customizable layouts, featuring AMG-specific metrics such as lateral G-force, brake temperature, and launch control readiness.

  - Steering Wheel and Controls:
  The flat-bottomed AMG steering wheel includes stitching patterns and paddle shifters for AMG SPEEDSHIFT MCT (manual mode). The multifunction display integrates AMG DRIVE PRO (a track-focused mode with launch control, torque vectoring, and brake bias adjustment). The center console houses a rotary gear selector (for automatic models) and AMG-specific buttons for dynamic steering, differential lock, and engine brake control.

  - Materials and Finishes:
  Carbon fiber is strategically placed on the dashboard, door sills, and center console, while Alcantara headliner and stitched leather enhance the sporty yet luxurious feel. The pedal cluster features aluminum or carbon fiber accents, and the floor mats are AMG-branded with rubberized or carpeted options. The door panels include electrically adjustable mirrors and AMG-specific cup holders with quick-release lids.
  

  Visual Comparison: 2018 CLS 63 vs. CLS 400 Profiles

  The following table contrasts the front, side, and rear profiles of the 2018 CLS 63 and CLS 400, highlighting AMG-exclusive features:
  

  Design Feature	2018 CLS 63 (AMG)	2018 CLS 400
  Front Profile	Quadrenal grille with black mesh inserts and horizontal slats. LED daytime running lights integrated into lower bumper. AMG badge centered on grille with stylized air intakes. Larger air intakes below the headlights for engine cooling.	Standard grille with chrome or black surround and vertical slats. Ambient lighting (optional) but no LED daytime running lights. Mercedes-Benz badge on grille with subtle air intakes.
  Side Profile	Active side skirts with adjustable air flaps for aerodynamics. 20-inch or 22-inch AMG-specific alloy wheels with carbon fiber accents. Dual-exhaust system with quad-tip outlets (stainless steel). LED turn signals integrated into C-pillar.	Fixed side skirts without active aerodynamics. 18-inch or 19-inch wheels with standard alloy designs. Single-exhaust system (on V6 models) or dual-exhaust (on V8). LED or halogen turn signals (no C-pillar integration). Driving Experience and Handling Characteristics of the 2018 Mercedes-AMG CLS 63 The 2018 Mercedes-AMG CLS 63 represents a refined blend of luxury sedans and high-performance dynamics, positioning itself as a grand tourer with aggressive capabilities. Its driving experience is defined by a balance between comfort and sportiness, though its handling is inherently constrained by its long-wheelbase, four-door sedan architecture. Compared to competitors like the BMW 7 Series and Audi A8, the CLS 63 prioritizes raw power delivery and AMG-tuned agility over the razor-sharp precision of its German rivals. The vehicle’s driving modes further accentuate its versatility, catering to everything from relaxed cruising to spirited track engagement, while its suspension tuning reflects AMG’s signature approach to ride quality and performance. On-Road Handling and Body Control The 2018 CLS 63 employs a multi-link rear suspension and adaptive dampers (AIRMATIC with AMG tuning) to manage body roll and maintain composure during dynamic maneuvers. Steering feedback is weighty and direct, particularly in Sport and Sport+ modes, though it lacks the telepathic precision of the BMW 7 Series’ servo-assisted system or the Audi A8’s ultra-responsive electro-mechanical steering. Body control is commendable for a grand tourer, with minimal squat under acceleration and slight dive during braking—attributes that contribute to its stable highway presence. In cornering, the CLS 63 demonstrates predictable yet uninspired behavior compared to its competitors. The long wheelbase (3.12 meters) and high polar moment of inertia result in slower steering response in tight urban turns, whereas the BMW 750i and Audi A8 L W12 exhibit sharper turn-in and better rotational agility. However, the CLS 63’s stability at high speeds is a strength, with minimal oversteer tendency even under aggressive throttle inputs, thanks to its electronic stability program (ESP) and torque vectoring rear axle (optional in some markets). The CLS 63’s handling is best described as "controlled chaos"—capable of absorbing power without drama but lacking the finesse of a dedicated sports sedan. AMG-Specific Driving Modes and Their Effects The 2018 CLS 63 offers four selectable driving modes, each altering throttle response, suspension firmness, and steering calibration to suit different scenarios. The Individual mode allows customization of steering sensitivity, acceleration response, and brake bias, though it requires prior setup via the AMG Driver’s Profile system. Comfort Mode Optimized for relaxed cruising with softer suspension damping, reducing road noise and vibration. Throttle response is linear and unaggressive, prioritizing smooth power delivery. Steering feel is light and numb, ideal for highway merging and urban navigation. Best suited for long-distance touring but sacrifices dynamic engagement. Sport Mode Increases suspension stiffness by ~20% for better cornering stability. Throttle response becomes more progressive, with a noticeable kickdown effect. Steering feedback is sharper, though still not as direct as in Sport+. Brake bias shifts slightly rearward, improving oversteer potential in spirited driving. Sport+ Mode Further tightens suspension damping, reducing body roll by ~30% compared to Comfort. Throttle response is abrupt and aggressive, with a ~15% quicker spool-up in lower gears. Steering becomes heavier and more tactile, mimicking a traditional sports car feel. Ideal for track days or aggressive canyon carving, though ride quality suffers. Individual Mode Allows customization of steering ratio, throttle mapping, and brake bias via the infotainment system. Advanced users can simulate a shorter wheelbase by adjusting steering sensitivity. Useful for track-focused tuning, though requires prior knowledge of AMG’s calibration parameters. Sport+ mode transforms the CLS 63 into a near-track-ready machine, though the trade-off in ride comfort is significant—expect a ~20% reduction in damping comfort compared to Comfort mode. Track-Day Performance Assessment While the 2018 CLS 63 is not a dedicated track weapon, its AMG-tuned chassis and 4MATIC+ all-wheel drive provide respectable lateral grip and stability under controlled conditions. Testing on a 1.5-mile skidpad (dry asphalt) reveals: - Lateral G-Force Limit: ~0.85g (comparable to the BMW 750i but below the Audi A8’s ~0.92g). Braking Distance (60–0 mph): Comfort Mode: 125 ft (38.1 m) Sport+ Mode: 118 ft (35.9 m) (with AMG Brake system engagement). High-Speed Stability: Top Speed (Governor-Limited): 155 mph (250 km/h) (electronically restricted). Crosswind Stability: Excellent, with minimal body sway at 70+ mph (113+ km/h) due to active rear spoiler and adaptive damping. Limit Handling: Understeer-Dominant: The CLS 63 resists oversteer well but suffers from push at the limit, requiring precise throttle modulation. Recovery from Drift: Slow compared to the BMW 7 Series’ integrated dynamics or Audi A8’s torque vectoring. The CLS 63’s weakness lies in its long wheelbase, which reduces steering responsiveness during high-speed slaloms and tight chicane exits. Ride Quality Comparison: City, Highway, and Off-Road Conditions The CLS 63’s AMG-tuned suspension prioritizes sportiness over plushness, though Mercedes engineers have mitigated harshness through adaptive damping and air suspension. Below is a structured comparison of ride quality across different terrains: Condition Comfort Mode Sport Mode Sport+ Mode Competitor Comparison (BMW 750i / Audi A8) City Driving Smooth over potholes due to low-frequency damping. Minimal body movement on rough surfaces. Road noise well-controlled (~58 dB at 60 mph). Firmer but still manageable; noticeable clunkiness on speed bumps. Steering vibrations at low speeds (~10–20 mph). Harsh over uneven pavement; body roll visible in tight turns. Road noise increases (~62 dB at 60 mph). BMW 750i: More isolated in Comfort mode but firmer in Sport. Audi A8: Best city comfort (air suspension with self-leveling), but Sport mode feels stiffer than CLS Sport. Ownership Costs and Practicality of the 2018 Mercedes-AMG CLS 63 The 2018 Mercedes-AMG CLS 63 delivers exhilarating performance and luxury, but its ownership extends beyond initial purchase price to encompass long-term financial commitments and practical considerations. Owners must account for elevated fuel consumption, specialized maintenance, higher insurance premiums, and depreciation trends unique to AMG models. Additionally, the sport-oriented tuning of the CLS 63 introduces trade-offs in rear legroom, cargo capacity, and daily usability compared to the standard CLS 400. This section provides a five-year cost breakdown, highlights common maintenance issues with repair cost estimates, and assesses the practicality compromises inherent to the AMG variant. A curated checklist of essential aftermarket modifications is also included to address performance, comfort, and aesthetic enhancements tailored to the CLS 63’s capabilities. Five-Year Ownership Cost Breakdown The total cost of ownership (TCO) for the 2018 Mercedes-AMG CLS 63 over five years reflects its premium positioning, with higher expenses in fuel, maintenance, and insurance relative to the non-AMG CLS 400. Below is a detailed cost comparison (USD estimates) based on average U.S. ownership scenarios, including fuel consumption, scheduled maintenance, AMG-specific services, insurance premiums, and depreciation trends. Cost Factor CLS 63 (2018) CLS 400 (2018) Difference (CLS 63 - CLS 400) Initial Purchase Price (MSRP) $82,950 $62,950 $19,000 (30% higher) Fuel Consumption (MPG Combined) 16 MPG (Premium Unleaded) 21 MPG (Regular Unleaded) 5 MPG lower (31% worse) Annual Fuel Cost (15,000 miles/year, $3.50/gal Premium) $3,281 $2,476 $805 (33% higher) 5-Year Fuel Cost $16,405 $12,380 $4,025 Scheduled Maintenance (5 Years) Basic service (oil, filters): $1,200 Brake system refresh: $1,800 Tire rotation/alignment: $600 Battery replacement: $350 Total: $3,950 Basic service (oil, filters): $900 Brake system refresh: $1,200 Tire rotation/alignment: $500 Battery replacement: $250 Total: $2,850 $1,100 (39% higher) AMG-Specific Maintenance (5 Years) Turbocharger inspection/replacement: $2,500–$5,000 Suspension bushings/links: $1,500–$3,000 Cooling system flush: $800 Exhaust system checks: $1,200 Total (Estimated): $6,000–$10,000 $0 (Non-AMG) $6,000–$10,000 (AMG-specific) Insurance Premiums (5 Years, Comprehensive/Collision) $12,000–$15,000 $8,000–$10,000 $4,000–$5,000 (50% higher) Depreciation (5 Years, Average Resale Value) Initial Value: $82,950 5-Year Resale: $35,000–$40,000 Depreciation: $42,950–$47,950 (52–58%) Initial Value: $62,950 5-Year Resale: $28,000–$32,000 Depreciation: $30,950–$34,950 (49–56%) $12,000–$13,000 (20% higher depreciation) Total 5-Year Ownership Cost $120,555–$133,355 $86,230–$95,230 $34,325–$38,125 (39–42% higher) Note: Costs vary by region, driving habits, and insurance provider. AMG-specific maintenance costs are estimates based on reported issues and average repair shop pricing. Depreciation rates assume moderate mileage (12,000–15,000 miles/year) and typical market conditions. Common Maintenance Issues and Repair Costs The 2018 Mercedes-AMG CLS 63 shares some reliability concerns with its M256 V8 engine platform, particularly in turbocharger durability, suspension wear, and electrical system quirks. Below are the most frequently reported issues, their causes, and estimated repair costs based on owner forums, service reports, and AMG specialist feedback. Key Vulnerabilities: The CLS 63’s 4.0L M256 twin-turbo V8 and AMG-tuned suspension introduce higher stress points than the CLS 400’s M253 inline-6. Turbocharger failures, suspension bushings, and cooling system leaks are prominent in the first 60,000–80,000 miles. Turbocharger Failure Symptoms: Loss of power The 2018 Mercedes AMG CLS 63 embodies the perfect fusion of luxury and performance, offering a driving experience that transcends conventional expectations. From its twin-turbocharged V8’s thunderous output to its razor-sharp handling and AMG-tuned refinement, this model redefines the boundaries of what a grand tourer can achieve. While its sporty tuning introduces practical trade-offs, the CLS 63’s engineering brilliance and timeless design ensure it remains a coveted choice for those who prioritize both exhilaration and exclusivity. As a benchmark in its class, it underscores Mercedes AMG’s ability to deliver uncompromising performance without sacrificing the hallmark comfort and prestige of the CLS lineage. FAQ Where can I find a used 2018 Mercedes-Benz AMG CLS 63 Coupe with 4MATIC for sale? You can find listings on platforms like Autotrader, Cars.com, or Mercedes-Benz Certified Pre-Owned dealers. Prices typically range from $60,000–$80,000 depending on mileage and condition. Always check for service history and AMG-specific maintenance records. What are the key features and specifications of the 2018 Mercedes-Benz AMG CLS 63 Coupe with 4MATIC? The 2018 CLS 63 Coupe features a 4.0L twin-turbo V8 producing 575 hp and 590 lb-ft of torque, paired with an 8-speed AMG SPEEDSHIFT MCT transmission. It includes 4MATIC all-wheel drive, adaptive dampers, and AMG-specific styling like kidney grilles and LED lighting. The interior offers Nappa leather, Burmester audio, and a 12.3-inch touchscreen. How reliable is the 2018 Mercedes-Benz AMG CLS 63, and what are common issues? The CLS 63 is generally reliable but prone to high maintenance costs due to AMG tuning. Common issues include oil consumption (especially in early models), electrical gremlins (infotainment glitches), and suspension wear. Regular AMG-scheduled servicing is critical to mitigate long-term problems. What’s the difference between the 2018 Mercedes-Benz CLS AMG CLS 63 S and the standard CLS 63? The CLS 63 S adds a more aggressive AMG styling package, a slightly retuned 4.0L V8 (585 hp), and optional AMG Dynamic Plus (adaptive suspension with 3 modes). It also includes unique 19-inch AMG wheels and sportier exhaust notes, while the base CLS 63 focuses on luxury and refinement. What is the 0-60 mph time for the 2018 Mercedes-Benz CLS 63 S 4MATIC? The 2018 CLS 63 S accelerates from 0-60 mph in 4.2 seconds (with the standard transmission). The AMG Line package (optional) shaves off ~0.2 seconds, while the CLS 63 S 4MATIC+ (with launch control) can reach 0-60 in 3.9 seconds. Where can I buy a used 2018 Mercedes-Benz CLS 63 AMG, and what should I check before purchasing? Look for listings on Mercedes-Benz Certified Pre-Owned, CarGurus, or local dealers. Before buying, verify the AMG service history (especially oil changes), check for recalls (e.g., timing chain or infotainment updates), and inspect for turbo lag or electrical quirks. A pre-purchase inspection by an AMG specialist is highly recommended.

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