Overview
2025 GR GT Prototype appears on the official Forza Horizon 6 car list as a S1 Class (supercar tier) entry in the base roster. This page covers how it tends to drive in its class, where it fits inside the Japan setting, how to think about a starting tune, and which roster entries it naturally compares against.
Background and Forza Horizon 6 context
The GR GT Prototype is Toyota's GR-badged Super GT GT500 race car, developed for Japan's top sports car series. Powered by a 2.0-litre turbocharged four-cylinder producing around 650 hp under series regulations, it shares aero principles with the GR Supra GT500 and is one of the headline race cars of the 2025 Super GT season. On the official Forza Horizon 6 car list this 2025 GR entry sits in the S1 Class (supercar tier) bracket inside the base roster, which is the placement players come to this page expecting to confirm against the public source. Inside the same S1 Class (supercar tier) bracket, the closest comparison roster entries for players are 2022 Acura NSX Type S and 2021 Alfa Romeo Giulia GTAm, which is the S1 Class (supercar tier) peer group this car is usually weighed against.
Driving feel in Forza Horizon 6
Toyota Gazoo Racing's GR GT Prototype is the upcoming follow-up to the Lexus LFA, with a twin-turbo V8 hybrid powertrain still in final development as of 2025. In S1-class events on Japan's longer routes the chassis is bigger and the powertrain torquier than the LFA it succeeds; the production version is expected to launch in 2026.
Where it shines
S1 class fits faster road events, longer point-to-points and online cruise lobbies focused on supercar showcases.
Tuning starting point
Tunes here often balance launch grip vs top-end. If you mostly run open road events, prefer a tune with steadier mid-throttle response over absolute V-max.
How to get 2025 GR GT Prototype
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.
