Currently reading: Mercedes-AMG GLS 63: 600bhp seven-seater spotted
Merc’s largest SUV will get AMG’s 4.0-litre twin-turbo V8 and chassis revisions, and is due in 2020

The new Mercedes-Benz GLS is set to get the full-fat AMG treatment, and new spy images show the performance-spec large SUV is well into its development phase. 

The largest SUV in the German car maker’s line-up was unveiled in standard form only last month, but already prototypes of the hot version have been seen with relatively little disguise.

The main tells that this is no ordinary GLS include the traditional quad tailpipes, vertical-slatted grille with chunkier lower air intakes, and larger front wheels needed to fit around bigger brakes. 

Like its GLC 63 and forthcoming GLE 63 siblings, the GLS 63 will make use of AMG’s 4.0-litre twin-turbocharged V8 engine. The same unit makes 503bhp in the GLC and up to 604bhp in the Mercedes-AMG E 63 saloon and estate. However, the current SUV range-topper, the G-Class, makes do with 577bhp in 63 form. It’s not yet clear whether the GLS will breach the 600bhp barrier, but it’s likely.

Either way, expect a 0-60mph time of under four seconds and a limited top speed of 155mph. A unique chassis and steering tune will also feature, though we’ve yet to establish if Mercedes-AMG will fit the GLS 63’s four-wheel-drive system with a ‘drift mode’ feature. 

Before the GLS 63 arrives in early 2020, though, the seven-seater will gain a half-fat ’53 AMG’ variant, making use of a hybridised straight six. That unit in the CLS coupé puts out 429bhp, so expect similar for the GLS. 

Read more 

Mercedes-AMG GLC 63 review

Mercedes-AMG plots brand-wide shift to all-wheel drive

New Mercedes-Benz GLS: re-engineered luxury SUV revealed



Read our review

Car review

Mercedes claims the GLS is the S-Class of the SUV world. We find out if it can live up to these claims

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Enough is enough....?

600bhp?, it’s not the car that needs that’s dangerous, it’s the driver operating it, and how much power do you really need to pass any vehicle?