The Mercedes G63 AMG Squared represents the pinnacle of the G-Class lineage — a hand-built, twin-turbo V8 SUV that merges military-grade off-road hardware with flagship luxury. Often referred to by enthusiasts as the “Squared” for its exaggerated boxy proportions and blacked-out trim, this model amplifies the standard G63’s presence with exclusive styling cues from the AMG Performance Studio. Whether you’re cross-shopping ultra-luxury off-roaders or seeking a daily driver that commands every room it enters, this guide breaks down the specs, real-world capabilities, ownership costs, and key buying considerations for 2026.
What Is the Mercedes G63 AMG Squared?
The “Squared” moniker isn’t a separate model code but a colloquial term for G63s equipped with the AMG Night Package, 22- or 23-inch forged wheels, carbon-fiber exterior accents, and a curated selection of magno (matte) paint finishes. Underneath, it shares the same ladder frame, three locking differentials, and 4.0 L biturbo V8 as the standard G63, but the visual and tactile upgrades push the price well into Bentley Bentayga territory. In practice, the Squared package is about visual differentiation — think blacked-out grille surrounds, darkened LED signatures, and contrast stitching that extends to the seat belts — rather than mechanical changes.
Model History and Evolution
The G-Class traces its roots to a 1970s joint venture between Mercedes-Benz and Steyr-Daimler-Puch for a military vehicle. That utilitarian DNA — solid axles, ladder frame, and a boxy shape dictated by function — survives today. The AMG transformation began in 2012 with the first factory G63, and each generation has added power, refinement, and technology while preserving the iconic silhouette. Understanding this heritage helps explain why the G63 commands a loyalty few SUVs can match; it’s not just a luxury truck, it’s a rolling piece of automotive history. For a broader look at how the segment evolved, see the SUV heritage and the defining characteristics of an SUV.
Performance and Powertrain
Engine and Transmission
- Engine: 4.0 L M177 twin-turbo V8, hand-assembled in Affalterbach
- Output: 577 hp @ 6,000 rpm, 627 lb-ft @ 2,500–5,000 rpm
- Transmission: AMG SPEEDSHIFT TCT 9G 9-speed automatic with wet clutch launch control
- 0–60 mph: 4.4 seconds (factory claim)
- Top speed: 137 mph (electronically limited) or 149 mph with AMG Driver’s Package
The V8’s low-end torque surge makes the 5,600 lb SUV feel lighter than its mass suggests. In Sport+ mode, the transmission holds gears to the redline and downshifts with a crisp exhaust crackle — a soundtrack that never gets old. A common mistake is leaving the car in Comfort mode on twisty roads; the throttle mapping and shift logic are too relaxed for spirited driving.
Driving Dynamics
AMG DYNAMIC SELECT offers five core modes (Comfort, Sport, Sport+, Individual, Off-Road) plus a configurable “Master” setting. Each adjusts throttle response, shift points, suspension damping, steering weight, ESP intervention, and exhaust flap position. The adaptive air suspension (AMG RIDE CONTROL) lowers the body 15 mm in Sport+ for reduced roll, while Off-Road raises it 40 mm for 241 mm ground clearance.
Off-Road Capability
Three Locking Differentials
The G63’s party piece remains its trio of manually selectable locking differentials (center, front, rear). Unlike most modern SUVs that rely on brake-based torque vectoring, these are mechanical locks — engage them via the center-console switches and you get true 50:50 torque split front-to-rear and side-to-side. On a recent rocky climb, locking all three allowed the G63 to crawl up a 35° loose-gravel incline where a brake-based system would have overheated.
G-LOW (G-LOCK) Low-Range Gearbox
Activated by a dedicated rotary dial, G-LOW provides a 2.05:1 reduction ratio, multiplying wheel torque for extreme low-speed control. It also softens power steering assist and modifies ABS/ESP thresholds. Pro tip: engage G-LOW before you need it; shifting on the fly can bind the driveline on high-traction surfaces.
Approach, Departure, and Breakover Angles
- Approach: 30.9° (Off-Road mode)
- Departure: 29.9°
- Breakover: 26.0°
- Wading depth: 27.6 inches (700 mm)
These figures are class-leading for a factory luxury SUV, but the long front overhang still demands careful line selection on steep descents.
Exterior Design: The Squared Aesthetic
The G63 AMG Squared shows its aggressive stance and signature boxy silhouette.
Image source: alainclass.com
Key visual upgrades in the Squared package:
- AMG Panamericana grille with vertical slats in high-gloss black
- 22-inch forged cross-spoke wheels (standard) or optional 23-inch Y-spoke design
- Carbon-fiber hood vents, mirror caps, and side-exit exhaust trim
- Magno paint palette: Selenite Grey Magno, Graphite Grey Magno, Olive Magno, plus standard metallics
- Blacked-out badging, window surrounds, and roof rails
The 23-inch wheel/tire combo (295/40 R23 front, 305/35 R23 rear) looks spectacular but reduces sidewall compliance off-road; most owners who actually venture off-pavement stick with the 22-inch all-terrain setup.
Interior Luxury and Technology
Materials and Craftsmanship
Every touchpoint is wrapped in Nappa leather (standard) or optional Designo semi-aniline with diamond quilting. Real carbon-fiber, open-pore walnut, or piano-black trim inserts are hand-matched. The front seats offer 12-way power adjustment, heating, ventilation, and a 10-program massage function — genuinely useful on 10-hour drives.
Infotainment and Connectivity
The MBUX system runs on a 12.3-inch touchscreen paired with a 12.3-inch digital instrument cluster. Natural voice control (“Hey Mercedes”) handles navigation, climate, and media. Wireless Apple CarPlay/Android Auto, a 64-color ambient lighting system, and a 15-speaker, 1,720-watt Burmester 3D surround system are standard. The optional rear-seat entertainment package adds two 11.6-inch screens with HDMI/USB-C inputs.
Space and Practicality
- Seating: 5 standard; 4 with individual rear comfort seats; 7 with optional third row (tight for adults)
- Cargo: 38.1 cu ft behind row 2, 68.6 cu ft with rows 2/3 folded
- Load floor: Flat when seats folded, but the high liftover (34 inches) can be awkward for heavy items
Safety and Driver Assistance Systems
Standard equipment includes:
- Active Distance Assist DISTRONIC (adaptive cruise with stop-and-go)
- Active Steering Assist (lane-centering up to 130 mph)
- Active Blind Spot Assist, Active Lane Keeping Assist, Traffic Sign Assist
- PRE-SAFE® PLUS (rear-end collision preparation)
- 360° camera with 3D view and transparent hood overlay
Optional Driver Assistance Package Plus adds Active Stop-and-Go Assist, Evasive Steering Assist, and Route-Based Speed Adaptation. The G-Class has not been fully crash-tested by NHTSA or IIHS for the current generation due to low volume, but its structure incorporates high-strength steel and aluminum in critical zones. For the latest government safety data, check NHTSA safety ratings.
Fuel Requirements and Running Costs
The M177 V8 requires 91-octane (RON 95) premium gasoline — no exceptions. Using regular fuel risks detonation, reduced power, and potential long-term engine damage. Mercedes explicitly states that premium is mandatory for all AMG V8 models. For a deeper dive into why premium is non-negotiable and the trade-offs of alternatives, see the guides on premium fuel requirements for Mercedes, which Mercedes models demand premium, alternatives to premium gasoline, and pros and cons of regular fuel in a Mercedes.
EPA Fuel Economy (2026 G63)
- Combined: 14 mpg (13 city / 16 highway)
- Annual fuel cost (EPA est.): ~$4,200 @ $4.50/gal premium
- Range: ~420 miles on 30-gallon tank
Real-world average tends toward 11–12 mpg in mixed driving. Plan on $300–$400 per fill-up.
Maintenance Schedule
- Service A/B intervals: 10,000 miles / 12 months
- Brake fluid: Every 2 years
- Coolant: 15 years / 150,000 miles
- Spark plugs: 60,000 miles
- Transmission fluid: 80,000 miles (sealed unit, dealer service recommended)
Typical annual maintenance (tires, brakes, fluids, inspections) runs $3,500–$5,500 at a dealership. Independent specialists can save 20–30% but verify they have the proprietary diagnostic software (XENTRY).
Customization and AMG Performance Studio Options
Beyond the Squared visual package, the Performance Studio offers:
- Carbon-ceramic brakes: 420 mm front / 360 mm rear, saves 15 kg unsprung weight, fade-free on track — $12,950
- AMG Performance Exhaust: Electronically controlled flaps, +5 hp, deeper idle burble — $3,800
- Carbon-fiber engine cover, interior trim, and exterior mirror caps — $4,200 combined
- Designo leather packages: Two-tone combinations, contrast topstitching, embroidered AMG crests — $6,500+
- Rear executive seating: Power recline, heating/ventilation/massage, folding tables, refrigerator — $14,800 (4-seat config only)
Lead times for bespoke colors (Manufaktur) can exceed 12 weeks.
Ownership Experience: Pros, Cons, and Real-World Costs
| Pros | Cons |
|---|---|
| Iconic, timeless design that appreciates in enthusiast circles | Sub-15 mpg combined fuel economy |
| Genuine off-road hardware (lockers, low range, portal axles on G550) | Wide body + long overhangs = parking anxiety |
| Hand-built V8 with character unmatched by turbo-six rivals | High service and parts costs (e.g., $1,200 per rotor) |
| Strong residual values (3-yr ~65% retention) | Third row is a $4,500 afterthought |
| Near-infinite customization through Manufaktur | Wind noise at highway speeds despite acoustic glass |
Estimated 5-Year Cost of Ownership (2026, 15k mi/yr)
| Category | Cost |
|---|---|
| Depreciation (3-yr lease equivalent) | $55,000 |
| Fuel | $19,500 |
| Insurance (full coverage, metro) | $12,000 |
| Maintenance & repairs | $18,000 |
| Taxes & fees | $8,500 |
| Total | $113,000 |
Resale remains strong because production is capped and demand exceeds supply; well-specced examples with magno paint and carbon ceramics often transact above MSRP on the secondary market.
How It Compares: Key Rivals
| Model | Base Price | Power | 0–60 mph | Off-Road Cred | Cargo (cu ft) |
|---|---|---|---|---|---|
| Mercedes G63 AMG Squared | ~$195,000 | 577 hp | 4.4 s | Excellent (lockers, low range) | 38.1 / 68.6 |
| Range Rover Sport SVR | $122,000 | 575 hp | 4.3 s | Good (air suspension, no lockers) | 36.4 / 59.5 |
| Bentley Bentayga S | $220,000 | 542 hp | 4.4 s | Moderate (no low range) | 35.1 / 62.6 |
| Lamborghini Urus Performante | $260,000 | 657 hp | 3.3 s | Limited (street tires, no low range) | 21.7 / 50.2 |
| Ford Bronco Raptor | $85,000 | 418 hp | 5.8 s | Superior (portal axles, 37s) | 35.6 / 72.3 |
The G63 occupies a unique niche: it’s the only vehicle here with genuine rock-crawling hardware and a handcrafted V8 and a cabin that rivals a Bentley. If you prioritize track times, the Urus wins; if you want the best all-rounder, the Range Rover Sport SVR is cheaper and more practical; but for the specific blend of heritage, presence, and capability, the G63 stands alone.
Buying Guide: What to Look For
New vs. Used
- New: Full warranty (4 yr / 50k mi), latest MBUX software, current safety tech, custom build. Expect 6–12 month wait for Squared-spec allocation.
- Used (2022–2024): Save $30k–$50k off MSRP. Verify service history at Mercedes dealer; check for curb rash on 22/23-inch wheels, ceramic brake condition, and software recall completion (e.g., 4800 kPa fuel pump update).
Option Packages Worth the Money
- AMG Driver’s Package — raises top speed, adds track-day tuition.
- Carbon-Ceramic Brakes — essential if you drive aggressively; steel rotors warp under repeated hard stops.
- Rear Executive Seating — transforms the back seat into a first-class cabin (4-seat only).
- Manufaktur Paint — magno finishes hide swirls better than gloss and photograph uniquely.
Common Issues to Audit
- Air suspension compressor — listen for excessive run time on cold starts.
- Center console switchgear — early 2022 builds had sticky differential lock buttons (TSB 23-045).
- Panoramic sunroof alignment — wind whistles at 70+ mph if seals misaligned.
- MBUX glitches — ensure latest OTA update (version 26.2+) is installed.
Frequently Asked Questions
What makes the G63 AMG Squared different from a regular G63?
The Squared label denotes a curated visual package: AMG Night Package, blacked-out trim, exclusive magno paints, carbon-fiber accents, and 22/23-inch forged wheels. Mechanically it’s identical to the standard G63.
How often should I service my G63 AMG Squared?
Mercedes recommends Service A/B every 10,000 miles or 12 months. Skipping intervals can void the factory warranty and accelerate wear on the twin-turbo V8.
Can the G63 AMG Squared tow?
Yes — up to 7,000 lbs with the factory hitch (standard). The ladder frame and low-range gearbox make it a stable tow vehicle, but fuel economy drops to single digits under load.
Is there a hybrid or electric version?
As of 2026, Mercedes offers the G580 with EQ Technology (fully electric, four motors, 579 hp) but no plug-in hybrid G63. The V8 remains the sole G63 powertrain.
How does G-LOW (G-LOCK) work?
A rotary dial engages a 2.05:1 low-range reduction in the transfer case, multiplies wheel torque, softens steering assist, and recalibrates ABS/ESP for loose surfaces. Engage at a stop, in neutral, below 3 mph.
Is the third row practical for adults?
No. The optional third row offers 28 inches of legroom and limited headroom due to the roofline. It’s suitable for children or very short trips only.
What is the real-world fuel economy?
Expect 11–12 mpg combined. Highway at 75 mph with A/C yields ~14 mpg; city traffic with frequent cold starts can dip to 9 mpg.
Does the Squared package affect resale value?
Yes — well-specced Squared examples with magno paint, carbon ceramics, and rear executive seating typically retain 5–8% more value at 3 years than a base G63.
Conclusion: Is the Mercedes G63 AMG Squared Right for You?
The G63 AMG Squared is a singular proposition: a hand-built V8 off-roader wrapped in a design that hasn’t fundamentally changed since 1979, yet packed with 2026 tech and luxury. It excels if you value presence, heritage, and genuine all-terrain capability over efficiency, parking ease, or rear-seat space. The ownership experience is costly but rewarding — few vehicles deliver this blend of emotion and engineering.
If your checklist includes a tow rating above 7,000 lbs, a third row for adults, or sub-$150k pricing, look elsewhere. But if you want the only SUV that can climb the Rubicon Trail on Saturday and valet at a five-star hotel on Sunday without apology, the G63 AMG Squared is the answer. Explore the latest G-Class configurations on the official Mercedes-Benz site to build your ideal Squared specification. The G63 AMG Squared remains the ultimate expression of go-anywhere grandeur — no compromise required.