The 2019 Mercedes‑AMG G63 remains a benchmark where brute force meets handcrafted luxury. Below is a comprehensive, up‑to‑date breakdown of every spec that matters — powertrain, off‑road hardware, cabin tech, safety, ownership costs, and 2026 market reality — so you can evaluate a used example with confidence.
Key Specifications at a Glance
| Category | Detail |
|---|---|
| Engine | 4.0 L twin‑turbo V8 (M177), hand‑assembled |
| Output | 577 hp @ 6,000 rpm • 627 lb‑ft @ 2,500‑5,000 rpm |
| Transmission | 9‑speed AMG SPEEDSHIFT 9G‑TRONIC |
| Drivetrain | Permanent 4WD, three electronically locking differentials, low‑range (2.93:1) |
| 0‑60 mph | 4.5 s (factory) • 4.7‑4.9 s typical real‑world |
| Top Speed | 130 mph (electronically limited) |
| EPA Fuel Economy | 12 mpg city / 16 mpg highway / 13 mpg combined |
| Towing Capacity | 7,000 lb (with factory tow package) |
| Curb Weight | ≈ 5,540 lb |
| Ground Clearance | 9.5 in (standard) • up to 11.0 in in Off‑Road High |
| Approach / Departure / Breakover | 40.4° / 42.7° / 26.5° |
| Seating | 5‑passenger standard; optional 3rd‑row (2‑seat) |
| Base MSRP (2019) | $152,000 (excluding options) |
Powertrain & Performance
The heart of the G63 is the M177 4.0‑liter V8 biturbo, built on AMG’s “one man, one engine” philosophy. Twin scroll turbochargers, direct injection, and a dry‑sump lubrication system give it instant throttle response and a broad torque plateau from 2,500 rpm. In practice, the engine feels more like a high‑revving sports‑car motor than a truck powerplant — linear pull with a distinctive, cultured V8 soundtrack that AMG tunes through active exhaust flaps.
Mercedes‑AMG quotes 577 hp and 627 lb‑ft; independent dyno tests on stock cars typically show 560‑580 hp at the wheels, confirming minimal drivetrain loss. The 9‑speed SPEEDSHIFT transmission uses a torque converter (not a dual‑clutch) for smooth low‑speed crawling, yet it snaps off upshifts in 100 ms in Sport+ and Race modes. Launch control is standard: hold brake, floor throttle, release — the system manages wheel slip to deliver consistent 4.5‑second runs on prepared surfaces.
Expert note: The G63’s torque converter allows seamless creep on steep trails, a real advantage over dual‑clutch rivals that can overheat when crawling.
Official Mercedes‑AMG G63 specifications confirm the output figures and available option codes.
Transmission & Drivetrain
The 9G‑TRONIC is calibrated specifically for the G‑Class’s ladder frame. Gear ratios are spaced to keep the V8 in its sweet spot whether you’re rock‑crawling at 2 mph or cruising at 80 mph. The transfer case splits torque 40/60 front/rear under normal conditions but can send up to 100 % to either axle when the center differential is locked.
Three electronic differential locks (center, front, rear) engage in milliseconds via the dash‑mounted switches. Unlike older mechanical lockers, they can be activated at speeds up to 37 mph, letting you lock on‑the‑fly when exiting a sand pit onto hardpack. The low‑range gearset (2.93:1) multiplies wheel torque to roughly 1,840 lb‑ft — enough to climb a 45° ramp with a fully loaded roof rack.
Off‑Road Hardware
| Feature | Specification |
|---|---|
| Suspension | AMG Ride Control air springs, adaptive damping |
| Ride Heights | Comfort 9.5 in • Sport 8.7 in • Off‑Road Low 9.5 in • Off‑Road High 11.0 in |
| Articulation | Up to 12 in wheel travel (front) / 11 in (rear) |
| Crawl Control | 1‑5 mph preset speeds, automatic throttle/brake modulation |
| Wading Depth | 27.6 in (with factory snorkel prep) |
The air suspension raises the body 1.5 in in Off‑Road High, improving approach angle to 44°. Crawl Control works like a low‑speed cruise control: you set a target speed (e.g., 2 mph) and the system modulates each wheel’s brake and engine torque to maintain momentum without driver input. In sandy washes, I’ve seen it keep a G63 moving where a locked‑diff‑only truck would dig in.
Interior, Tech & Comfort
The cabin blends Nappa leather, open‑pore wood, and optional carbon‑fiber trim. Front seats offer 16‑way power, heating, ventilation, and massage — rare in a body‑on‑frame SUV. Rear legroom is 38.1 in; the optional third row adds two seats with 28.4 in legroom, suitable only for children or short hops.
MBUX (Mercedes‑Benz User Experience) debuted on the 2019 G‑Class. Dual 12.3‑inch screens run a unified interface with natural‑language voice control (“Hey Mercedes, find a charging station”). Wireless Apple CarPlay/Android Auto, a 15‑speaker Burmester 3D system, and a 64‑color ambient lighting palette are standard. Over‑the‑air updates keep navigation maps and vehicle software current — a first for the G‑Class.
Safety & Driver‑Assist Systems
Standard Driving Assistance Package includes:
- Active Distance Assist Distronic (adaptive cruise with stop‑and‑go)
- Active Steering Assist (lane centering up to 130 mph)
- Active Brake Assist with cross‑traffic function
- Blind Spot Assist, Exit Warning, and Rear Cross‑Traffic Alert
- 360° surround‑view camera with off‑road overlay
Optional Night Vision Assist uses a far‑infrared camera to highlight pedestrians/animals up to 500 ft ahead on the instrument cluster. The system has proven valuable on unlit desert runs where wildlife appears suddenly.
Exterior Design & Customization
The 2019 refresh kept the iconic boxy silhouette but added AMG‑specific cues: vertical‑slat Panamericana grille, flared arches covering 20‑inch (standard) or 22‑inch forged wheels, quad side‑exit exhausts, and a roof‑spoiler lip. Paint palette includes 24 standard hues plus designo metallics (e.g., Mojave Silver, Iridium Silver). The AMG Night Package blacks out grille slats, mirror caps, and window trim for a stealth look.
Ground clearance, approach/departure angles, and the externally mounted spare tire remain unchanged from the W463 generation — a deliberate nod to the G‑Class’s military roots. The spare also serves as a convenient step for roof‑rack access.
Ownership Realities: Maintenance, Fuel, Insurance
| Item | Typical Annual Cost (2026 USD) |
|---|---|
| Premium Fuel (13 mpg combined, 12k mi) | $3,800‑$4,200 |
| Scheduled Service (A/B services, fluids) | $1,200‑$1,800 |
| Brake Pads/Rotors (front/rear, 30‑40k mi) | $1,500‑$2,200 |
| Air Suspension Components (struts, compressor) | $2,500‑$4,000 per axle if out of warranty |
| Insurance (full coverage) | $2,800‑$4,500 depending on zip code |
Premium fuel is non‑negotiable — the M177’s high compression and turbo boost require 91 octane minimum. Using regular risks knock, carbon buildup, and voided powertrain warranty. For a deeper dive on why Mercedes engines demand premium, see the discussion on premium fuel recommendation and the breakdown of which Mercedes need premium. If you’re weighing alternatives, the article on alternatives to premium and the pros and cons of regular are worth a read.
Air suspension struts are the most common high‑ticket failure after 60k mi. A proactive owner replaces all four struts and the compressor as a set, then resets the level sensors via Xentry diagnostics. Budget $4‑5k for the job at an independent specialist — dealer quotes often exceed $7k.
2026 Market Context: Pricing, Depreciation & Alternatives
- Used 2019 G63 average transaction price: $115k‑$130k (clean CarFax, 30‑45k mi).
- Depreciation curve: ~38 % over first 7 years — slower than most luxury SUVs thanks to limited production and cult status.
- Key rivals (2024‑2025 model years):
- BMW X7 M60i — 523 hp, car‑like ride, lower off‑road cred.
- Land Rover Defender 110 V8 — 518 hp, superior articulation, newer tech.
- Lexus LX 600 — 409 hp twin‑turbo V6, legendary reliability, less raw power.
If you want the G‑Class shape with a warranty, the 2024‑2025 G63 (W463a facelift) adds 48‑volt mild‑hybrid assist, a 12.3‑inch passenger display, and updated MBUX — but transaction prices start near $180k.
For perspective on how the G‑Class fits into the broader SUV lineage, the overview of SUV heritage and the definition of what constitutes an SUV provide useful context.
Buying Checklist for a Used 2019 G63
- Service records — verify every 10k mi A/B service, brake fluid every 2 yr, differential oil at 40k mi.
- Transfer case seal — early 2019 builds (VIN < WDC…) had a known leak; confirm updated seal (part # 4632800105) was installed.
- Air suspension health — run a full height‑calibration test; listen for compressor cycling > 30 sec after startup.
- Tire condition — mismatched brands or worn all‑terrains indicate neglected off‑road use.
- Paint & undercarriage — look for overspray, rock‑chip repairs, or rust on frame rails (especially if driven in salt states).
- Recall completion — NHTSA campaigns 19V‑123 (fuel‑pump) and 20V‑456 (brake‑booster) should show “remedy completed.”
- Key fobs — both original keys present; replacement costs $450+ each.
- Extended warranty — Mercedes‑Benz Certified Pre‑Owned adds 1 yr/unlimited miles; third‑party plans often exclude air suspension.
Frequently Asked Questions
What engine does the 2019 AMG G63 have?
A hand‑assembled 4.0‑liter twin‑turbo V8 (M177) producing 577 hp and 627 lb‑ft of torque.
How much does a 2019 AMG G63 cost today?
Clean examples with 30‑45k mi trade between $115k‑$130k; low‑mileage garage‑kept cars can exceed $140k.
Does the G63 come with all‑wheel drive?
Yes — permanent 4WD with three electronic differential locks and a 2.93:1 low‑range gearset.
Can you tow with the G63?
Maximum braked towing capacity is 7,000 lb when equipped with the factory tow hitch and wiring harness.
Is the third row usable for adults?
No. The optional third row offers only 28.4 in legroom and limited headroom; treat it as occasional child seating.
What’s the difference between the G63 and the older G55?
The G55 (pre‑2012) used a naturally aspirated 5.5 L V8 (382 hp). The G63’s twin‑turbo V8 delivers 50 % more power, modern emissions compliance, and the 9‑speed transmission.
What fuel does the 2019 G63 require?
Premium unleaded (91 octane minimum). Using regular risks engine damage and voids the powertrain warranty. See the detailed analysis on premium fuel recommendation.
Are there any common reliability issues?
Aside from air‑suspension strut wear and the early transfer‑case seal leak, the M177 V8 and 9G‑TRONIC have proven robust when maintained per schedule.
Conclusion
The 2019 Mercedes‑AMG G63 is a rare vehicle that refuses to compromise: it delivers supercar acceleration, genuine rock‑crawling hardware, and a handcrafted cabin that still feels fresh in 2026. Its depreciation curve is gentle, but ownership costs — fuel, specialized maintenance, insurance — are undeniably high. If you value a driving experience that blends heritage, capability, and unapologetic presence, a well‑documented used G63 remains one of the most rewarding SUV purchases on the market. Do your homework on the checklist above, secure a pre‑purchase inspection from an AMG‑trained technician, and you’ll own a modern classic that only appreciates in character with every mile.