Class D covers Performance Index 100–400 in Forza Horizon 6 — the starter and budget bracket. Cars here keep power modest, so setups matter more than horsepower: short gearing for city sprints, soft enough suspension for bumpy festival roads, and tires that actually warm up before the next corner.

Most D-class builds are for early Horizon Story events, low-PI street races, and players who want a controllable car before unlocking bigger upgrades. Expect understeer if the front tires are cold or the anti-roll bars are too stiff; expect snap oversteer if rear grip disappears mid-corner.

When you browse D-class share codes on this page, look for notes about launch feel, braking stability, and whether the tune is aimed at road, street, or dirt. A good community tune explains the intended use — not just a nine-digit code with no context.

If this list is empty, nobody has published a D-class setup yet. Read the PI Classes and Tune Types guides, then submit your own build from the Share a tune flow so other players can download it in-game.