2027 Mercedes-AMG GLS Release Date & Specs – The 2027 Mercedes-AMG GLS-Class (specifically the high-performance GLS 63) represents a significant mid-cycle refresh of Mercedes-Benz’s flagship three-row performance SUV. Built for U.S. buyers seeking V8 power, luxury, and everyday usability, this model brings a revised powertrain, updated styling, and enhanced technology. Here’s everything American shoppers need to know about its release timing, based on official announcements and reporting from trusted automotive sources.
2027 Mercedes-AMG GLS-Class Release Date in the USA
Mercedes-AMG officially revealed the 2027 GLS 63 (alongside the related GLE 63 S) in mid-June 2026. The vehicle is scheduled to begin arriving at U.S. Mercedes-Benz dealerships in fall 2026.
Multiple sources, including Car and Driver, AutoGuide, and Mercedes-Benz dealers, confirm the fall 2026 on-sale window for the U.S. market. This aligns with the broader 2027 GLS-Class lineup (including standard GLS 450 and GLS 580 models), which is also expected to reach showrooms in the second half of 2026.
As of August 2026, production is underway or imminent at Mercedes-Benz’s Tuscaloosa, Alabama plant (the same facility that builds other GLS models for North America). U.S. buyers can expect initial allocations to appear at dealerships throughout the fall, with broader availability following shortly after.
Expected Pricing for the U.S. Market
Mercedes-AMG has not yet released official 2027 pricing. The outgoing 2026 AMG GLS 63 started at approximately $151,050 (including destination). Industry analysts and reports indicate the refreshed model is unlikely to be cheaper, with a starting price expected in a similar range or modestly higher once options and packages are factored in.
Final U.S. pricing and full option lists are typically announced closer to the on-sale date. Prospective buyers should contact local Mercedes-Benz dealers for the latest allocation and pricing information as fall approaches.
Performance and Powertrain Updates
At the heart of the 2027 AMG GLS 63 is a thoroughly revised handcrafted AMG 4.0-liter twin-turbo V8 (M177 EVO). Key changes include a new flat-plane crankshaft, improved turbocharging, revised intake and exhaust ports, and an updated 48-volt mild-hybrid system. Output remains 603 horsepower and 627 lb-ft of torque, with peak power arriving slightly earlier in the rev range for sharper response.
Mercedes-AMG claims a 0-60 mph time of 3.9 seconds for the GLS 63, with a top speed electronically limited to 174 mph. The powertrain pairs with a nine-speed automatic transmission and AMG Performance 4MATIC+ all-wheel drive. A new AMG Performance exhaust system allows drivers to adjust the V8 soundtrack.
Suspension upgrades include AMG Ride Control+ adaptive damping as standard, contributing to both performance handling and refined ride quality for a large three-row SUV.
Design, Technology, and Features
The exterior receives AMG-specific styling cues that complement the broader 2027 GLS facelift, including a distinctive grille, revised front and rear bumpers, star-pattern LED lighting elements, and available larger wheels (up to 23 inches). New exterior colors and wheel designs expand personalization options.
Inside, the cabin benefits from the updated MBUX multimedia system (including advanced AI features and the Superscreen layout seen across the refreshed GLS range), premium materials, and available rear-seat comfort packages. The vehicle retains seating for up to seven passengers while emphasizing AMG performance character.
What U.S. Buyers Should Expect Next?
With the fall 2026 arrival window approaching, interested American buyers should:
- Contact their local Mercedes-Benz dealership to express interest and inquire about early allocations.
- Monitor official Mercedes-Benz USA channels and trusted sites such as Car and Driver, Edmunds, and Kelley Blue Book for final pricing and configuration details.
- Consider current 2026 AMG GLS 63 inventory if they prefer not to wait for the refreshed model.
The 2027 Mercedes-AMG GLS 63 continues the model’s reputation as a powerful, luxurious three-row SUV tailored for U.S. roads and lifestyles. Its combination of a high-output flat-plane V8, advanced mild-hybrid assistance, and modern technology positions it as a strong contender in the large performance SUV segment when it reaches dealerships this fall.