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Comparing the 2026 Mercedes-Benz G 550 and Mercedes- AMG® G 63
The 2026 AMG G 63 provides 577 horsepower compared to 443 in the G 550. Both combustion models feature hybrid-assist technology for optimal power delivery on Alabama roads. Explore the engineering differences below before browsing our available luxury inventory.
Engine Architecture and Performance
Under the hood of the G 550 rests a 3.0L inline-6 turbo engine with hybrid assist, generating 443 horsepower and 413 lb-ft of torque. The inline-6 configuration prioritizes smooth power delivery and balanced efficiency, so you experience seamless acceleration when merging onto interstate highways or cruising through downtown Tuscaloosa.
For drivers who demand aggressive acoustics and track-level power, the AMG G 63 features a handcrafted AMG 4.0L V8 biturbo engine with hybrid assist, outputting 577 horsepower and a staggering 627 lb-ft of torque. The translation for the daily driver is profound: the V8 delivers explosive off-the-line speed, reducing the 0 to 60 mph time to just 4.2 seconds. If you are ready to experience this, you can browse our current G-Class selections. To see how these combustion models sit alongside the electric variants, review our 2026 G-Class SUV capabilities overview.
| Specification | 2026 G 550 | 2026 AMG G 63 |
|---|---|---|
| Engine | 3.0L inline-6 turbo (hybrid assist) | Handcrafted AMG 4.0L V8 biturbo (hybrid assist) |
| Horsepower | 443 hp | 577 hp |
| Torque | 413 lb-ft | 627 lb-ft |
| 0 to 60 mph | 5.3 seconds | 4.2 seconds |
| Transmission | 9G-TRONIC 9-speed automatic | AMG SPEEDSHIFT® TCT 9-speed |
| Maximum towing | Up to 7,000 lbs | Up to 7,000 lbs |
Exterior Styling and Off-Road Capability
Both trims use a sophisticated ladder-frame chassis and permanent all-wheel drive. The standard G 550 wears 19-inch twin 5-spoke wheels and a stainless steel brush guard, providing exceptional clearance and durability for navigating unpaved trails or hunting properties in West Alabama. The AMG G 63 upgrades to 20-inch AMG twin 5-spoke wheels and aggressive AMG body styling, with larger wheels that accommodate the high-performance braking required to safely slow the powerful V8.
The AMG model also features AMG ACTIVE RIDE CONTROL suspension, which reduces body roll during tight cornering and keeps the cabin stable whether you are on a winding country road or making a sharp turn near the University of Alabama campus. For comprehensive chassis details, you can consult the AMG G 63 specifications at Mercedes-Benz USA.
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