The AMG GLS 63's signature vertical-slat grille. Photo: Mercedes-Benz USA.

2026 Mercedes-AMG GLS 63: Brooklyn Buyers Guide

603 handcrafted horsepower, still built for seven

Mercedes-AMG builds this V8 by hand, one engineer per engine, and the number that follows — 603 horsepower, 627 lb-ft — would be remarkable in a two-seat sports car. Housed in a three-row SUV that can carry seven people and their luggage, it's closer to a magic trick. AMG ACTIVE RIDE CONTROL replaces the standard AIRMATIC setup with something engineered specifically for a 6,100-pound vehicle that still needs to change direction with real conviction, and the AMG SPEEDSHIFT TCT 9-speed shifts with a directness the standard 9G-TRONIC doesn't attempt. The 21-inch AMG wheels, smaller in diameter than the 580's 22s but wrapped in genuinely high-performance rubber, are tuned for grip over ride comfort.

None of that comes at the expense of what makes a GLS a GLS. Seven-passenger seating is still standard, the dual 12.3-inch MBUX displays and 13-speaker Burmester system carry over unchanged, and the panoramic roof still floods the second and third rows with light. The AMG GLS 63 is the rare performance flagship that never stops being a family SUV underneath the drama.

The turning circle tells the real story

At 43.0 feet wall-to-wall, the AMG GLS 63's turning circle runs nearly two feet wider than the GLS 450 and 580's shared 41.1 feet, a direct consequence of the performance chassis hardware packed underneath. It's a small number with outsized relevance in Brooklyn, where three-point turns on a narrow residential block or a tight garage entrance are a fact of ownership life. Buyers who spend more time navigating Bensonhurst side streets than open road should weigh that half-step in maneuverability against the performance gains, and a same-day test drive at the dealership is the fastest way to feel the difference for real.

Allocation, not just price, is the constraint

At $151,050 MSRP, the AMG GLS 63 is a low-volume build even by this dealership's standards, and buyers serious about one should expect a conversation about production timing and inventory position as much as a conversation about spec. Mercedes-Benz of Brooklyn's 500-plus-vehicle inventory and standing as the borough's only authorized Mercedes-Benz dealer put it in a stronger position than most stores to source one, but the honest advice is the same for any handcrafted-engine AMG: talk to the sales floor early, not the week you want to take delivery.

Frequently asked questions

How much does the 2026 AMG GLS 63 cost?

$151,050 MSRP plus $1,250 destination before options, with New York City buyers adding 8.875% combined sales tax. The pricing and leasing guide covers every trim's math side by side.

What engine is in the AMG GLS 63?

A handcrafted AMG 4.0-liter biturbo V8 with hybrid assist: 603 hp, 627 lb-ft, AMG SPEEDSHIFT TCT 9-speed transmission, AMG Performance 4MATIC+ all-wheel drive.

Is the AMG GLS 63 the same engine as the AMG GLE 63 S?

They share an output figure — 603 hp — but they're different vehicles on different platforms with different tuning; the GLE 63 S is quicker to 60 and drops the third row entirely, while the GLS 63 keeps full three-row, seven-passenger capability. They shouldn't be treated as the same car with two different names.

Does the AMG GLS 63 still seat seven?

Yes. Unlike some AMG siblings elsewhere in the Mercedes SUV lineup that drop to five-passenger-only, the AMG GLS 63 keeps the third row and seven-passenger capacity standard.

What fuel economy should I expect?

EPA estimates are 15 city / 20 highway / 17 combined on premium unleaded — essentially in line with the GLS 580 despite the AMG's extra 93 horsepower, since both share the same basic V8 architecture.

Where can I see an AMG GLS 63 in Brooklyn?

At Mercedes-Benz of Brooklyn, 1800 Shore Parkway, off Belt Parkway Exit 5. Given its allocation-limited nature, a call ahead to confirm current stock is worth the two minutes.

The flagship, in full

The AMG GLS 63 is what happens when Mercedes-AMG is told to build the fastest possible version of its biggest SUV without giving up a single seat. It's the top of a three-model range that starts at the more accessible GLS 450 and climbs through the V8-powered GLS 580; the full comparison lives at the 2026 GLS overview.