Overview
2015 Mercedes-AMG GT S appears on the official Forza Horizon 6 car list as a A Class (sharp performance) entry in the base roster. This page focuses on what the car actually means for everyday players: how it tends to drive in its class, where it fits inside Forza Horizon 6's Japan setting, how to think about a starting tune, and which other roster entries it naturally compares against.
If you found this page while searching for a single Mercedes-AMG model in Forza Horizon 6, you are in the right place. Everything below is built around the official list fields (year, class, pack, manufacturer) plus plain-language player notes. We do not invent horsepower numbers, hidden upgrade paths, or unlock guarantees that the official list has not confirmed.
Background and Forza Horizon 6 context
The AMG GT S was the second car developed entirely by Mercedes-AMG (after the SLS), with a 503 hp 4.0-litre M178 twin-turbo V8 mounted in a front-mid layout, a transaxle gearbox and rear-wheel drive. The long-bonnet, short-deck silhouette became one of the most distinctive grand tourer shapes of the 2010s. On the official Forza Horizon 6 car list this 2015 Mercedes-AMG entry sits in the A Class (sharp performance) bracket inside the base roster, which is the placement players come to this page expecting to confirm against the public source. Inside the same A Class (sharp performance) bracket, the closest comparison roster entries for players are 2007 Alfa Romeo 8C Competizione and 2014 Alfa Romeo 4C, which is the A Class (sharp performance) peer group this car is usually weighed against.
Driving feel in Forza Horizon 6
AMG GT S used the M178 4.0 twin-turbo V8 making 503hp in a front-mid-engine front-wheel-out layout through a seven-speed dual-clutch. In A-class events on Japan's mountain routes the GT S's long bonnet and rear-mounted gearbox give it a 47/53 front-rear weight balance; the chassis is the most agile front-engined AMG of the period.
Where it shines
A class is the sweet-spot bracket for many Horizon road events, especially mid-length point-to-points and Street race playlists.
Tuning starting point
A class rewards smarter aero and gearing. Test whether a top-speed gear or a corner-exit gear suits the events you actually run.
These are general starting points only, not a guaranteed competitive setup. Forza Horizon 6 community tunes that already have hundreds of downloads are usually a faster route than building from scratch, especially if you are not sure of the car's drivetrain or aero behaviour yet.
How to get 2015 Mercedes-AMG GT S
This car is listed without an add-on label on the official Forza Horizon 6 source, so we treat it as part of the base roster. Forza Horizon 6 launches on May 19, 2026, and before that date the public Autoshow may not surface every base-roster car yet — players asking 'how do I get this car, it is not in the Autoshow?' on Reddit or the Forza forums usually find the answer is 'wait for launch day or a post-launch update'. After launch, base-roster cars are normally available through credits in the Autoshow, Wheelspins, Festival Playlist rewards, or the in-game showcase that introduces new vehicles.
