2018 Mercedes-AMG G63 Review: Power, Specs, Real-World Drive

The 2018 Mercedes-AMG G63 transforms the legendary G-Class into a high-performance beast, blending brute force with surprising refinement. This model marks a comprehensive update, retaining the boxy silhouette while introducing modern engineering under the skin for better on-road dynamics and off-road supremacy.

Iconic Design Meets Modern Aggression

Retaining its unmistakable blocky profile, the 2018 G63 amplifies presence with AMG-specific flair. Wide arches accommodate 22-inch wheels, side pipes scream performance, and a bold vertical-slat grille signals its tuned pedigree. Subtle dimensional tweaks—53mm longer and 64mm wider—enhance stability without diluting the classic G-Wagen charm.

LED multi-beam headlights and circular daytime running lights add contemporary edge. The body kit, huge brakes, and exclusive paint options underscore its status as the range-topper. From afar, it exudes military heritage; up close, premium details like chrome accents and Saddle Brown leather interiors reveal luxury evolution.

Heart of the Beast: Twin-Turbo V8 Muscle

At its core lies a hand-built 5.5-liter twin-turbo V8 pumping out 550 horsepower and 516 lb-ft of torque, surging from idle with ferocious intent. Paired to a seven-speed automatic, it propels the 5,800-pound behemoth from 0-60 mph in about 5 seconds—astonishing for its size.

The transmission shifts crisply but hunts gears in relaxed cruising, prioritizing efficiency over seamlessness. A rear-biased 60/40 power split enhances traction, making it feel alive in corners despite its mass. Exhaust notes boom dramatically, turning every drive into theater.

Chassis Revolution: From Rugged to Refined

A radical overhaul ditches the old solid front axle for independent double-wishbone suspension, paired with a five-link rear setup. Electro-hydraulic power steering delivers precise, communicative feedback with variable ratio for on-road poise.

Adaptive damping adjusts for Comfort, Sport, or off-road modes, balancing plush highway rides with controlled body roll. It’s quicker and more engaging on twisty roads than predecessors, though high-speed corners demand respect due to its height and weight.

Off-Road Supremacy Unleashed

True to roots, the G63 conquers extremes with three 100% locking differentials, high/low-range gearing, and modes for Trail, Sand, Rock. Approach/departure angles near 30 degrees and 700mm water fording dwarf most rivals.

• Front, center, rear diff locks engage instantly for maximum grip.
• Low-range crawler gear for steep inclines.
• G-Mode stabilizes electronics on rough terrain.

High-performance tires limit pure off-road flexibility compared to standard G-Class, but it still outclasses SUVs in capability.

Luxury Cabin with Practical Twists

The interior mixes high-end materials with functional ruggedness. Twin 12.3-inch digital displays borrow S-Class tech, offering intuitive COMAND navigation and AMG menus. Nappa leather, carbon trim, and cooled seats pamper upfront.

However, stadium seating and narrow width cramp shoulders; rear space fits adults marginally, but folding seats reveal vast cargo room. Hard plastics persist in grab areas, nodding to origins.

Visibility excels from the commanding perch, though ingress/egress remains truck-like. A prehistoric parking brake lever adds quirk.

Daily Drivability and Tech Suite

Surprisingly livable, the G63 quiets wind and road noise effectively. The 7-inch screen suffices given proximity, with Apple CarPlay and ambient lighting. Lacking newer MBUX, it feels dated against rivals.

• Adaptive cruise and blind-spot monitoring available.
• 360-degree cameras aid maneuvering.
• Burmester audio elevates journeys.

Steering feels heavy at low speeds but sharpens up, transforming highway slogs into enjoyable cruises.

Fuel Thirst and Ownership Realities

Efficiency suffers at 12 mpg city/14 highway, with real-world tests dipping to 10 mpg. Massive 26-gallon tank mitigates range anxiety.

Pricing starts over $140,000, ballooning with options. Maintenance on the hand-built engine demands deep pockets, but 95% consumer recommendation highlights appeal.

Rivals and Buying Verdict

Against Range Rover or Lamborghini Urus, the G63 stands alone in off-road icon status. It trades polished handling for character and versatility.

For those craving drama, capability, and prestige, it’s unmatched—despite quirks.

Performance Breakdown

• Acceleration: Explosive, tire-shredding launches.
• Handling: Improved but truck-like limits.
• Comfort: Quiet cruiser with supportive seats.
• Utility: Vast cargo when seats fold.

Pros and Cons at a Glance

• Pros: Insane power, off-road mastery, iconic style, luxury touches.
• Cons: Tight interior, poor MPG, high cost, tricky dynamics.

FAQs

Is the 2018 AMG G63 worth the price?

Yes, for enthusiasts seeking unique performance and heritage; budget buyers should look elsewhere.

How does it compare off-road to standard G-Class?

Slightly less flexible due to tires, but still superior to most.

What’s the fuel economy?

12/14 mpg EPA; expect lower in spirited use.

Any major changes from prior G63?

Independent front suspension, better steering, more power delivery refinement.

Best for city or highway driving?

Thrives everywhere, shines on open roads and trails.