Overview
1984 Opel Manta 400 appears on the official Forza Horizon 6 car list as a B Class (balanced sport) 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
Built by Opel for Group B rallying, the Manta 400 used a 16-valve 2.4-litre four developed in cooperation with Cosworth. Around 245 road cars were built to satisfy homologation; Russell Brookes and Jimmy McRae won British and Irish rally titles in the works machines, keeping the otherwise mundane Manta name alive in motorsport. On the official Forza Horizon 6 car list this 1984 Opel entry sits in the B Class (balanced sport) bracket inside the base roster, which is the placement players come to this page expecting to confirm against the public source. Inside the same B Class (balanced sport) bracket, the closest comparison roster entries for players are 1984 Audi Sport quattro and 1981 BMW M1, which is the B Class (balanced sport) peer group this car is usually weighed against.
Driving feel in Forza Horizon 6
Manta 400 was Opel's Group B homologation special — Cosworth-developed 2.4 inline-four with 16-valve head making around 200hp through a five-speed manual. Around 245 road cars were built. In B-class events on Japan's mountain routes the Manta 400 keeps the otherwise mundane Manta nameplate alive in motorsport history; the chassis behaviour is closer to a touring car than a road sedan.
Where it shines
B class is one of the most popular brackets in the Forza community because cars feel quick but balanced. It works for Road racing, Street racing on shorter routes and most casual rivals.
Tuning starting point
Look for tunes that match how you brake. If you brake late, dial in slightly stiffer rear damping. If you trail-brake, soften the front anti-roll bar.
How to get 1984 Opel Manta 400
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.
