D Class Cars in Forza Horizon 6 — Complete Tier List & Tuning Guide
PI Range: 100-500
D Class is the slowest performance bracket in FH6. And honestly? That's exactly what makes it the best one. When everyone has 150-200 horsepower, racing actually comes down to cornering technique and car choice instead of who brought the biggest engine swap. I've spent more time in D Class across the last few Forza games than any other bracket — the racing is cleaner, the cars have way more character, and you actually get to use third gear. Imagine that.
The FH6 physics overhaul changed things for D Class in some interesting ways. Tire grip feels more progressive than in FH5, especially on vintage cars that used to snap-oversteer the moment you breathed on the throttle. Cars like the classic Minis and old Datsuns that were borderline undrivable in FH5 now have a much wider slip angle window before they let go. It's actually fun now instead of terrifying. That said, rear-engine cars like the Porsche 356 still need careful throttle management out of slow corners. Some things don't change.
What Makes a Good D Class Car
The D Class meta isn't about power — the PI cap at 500 means most builds settle around 180-230 hp. Not much to work with. What actually matters is weight distribution and handling characteristics. Cars under 2,000 lbs have a massive advantage because they carry more speed through corners and brake later. The 1990 Mazda Miata, 1965 Mini Cooper, and 1974 Honda Civic are all competitive despite embarrassingly low power numbers. They're just that light. Momentum is everything at this PI level.
Front-wheel-drive cars tend to dominate tight technical tracks because they pull out of slow corners better at this power level. On faster circuits, rear-wheel-drive classics with good mid-corner balance start to pull ahead — you can carry mid-corner speed that FWD cars just can't match. All-wheel-drive is rare in D Class and usually not worth the PI cost unless you're building specifically for dirt or cross-country events. The drivetrain penalty eats too much of your already limited power budget.
Top 5 D Class Cars
| Car | Stock PI | Strengths | Weaknesses |
|---|---|---|---|
| 1990 Mazda Miata | 384 | Perfect 50/50 weight distribution, massive aftermarket support, huge tuning window to D500 | Low stock power, needs suspension upgrades to compete at top of class |
| 1965 Mini Cooper S | 356 | Lightest competitive car in D Class at 1,400 lbs, FWD grip out of hairpins, surprisingly stable after FH6 physics changes | Tops out around 110 mph on straights, gets walked on high-speed circuits |
| 1974 Honda Civic RS | 318 | Huge PI headroom (182 points to D500), very light, handles like a go-kart with suspension upgrades | Needs significant investment to reach top of class, limited top speed |
| 1969 Nissan Fairlady Z 432 | 447 | Best RWD power-to-weight ratio in D Class, great on faster circuits, sounds incredible | Can be twitchy mid-corner if you overbuild the engine, tight PI ceiling |
| 1958 Aston Martin DBR1 | 497 | Near-perfect stock PI for D500 racing, excellent handling out of the box, dominates vintage race series | Almost no tuning headroom, expensive in the Autoshow, not great on dirt |
D Class Tuning — Where to Spend Your Points
At D Class PI, every upgrade point matters more than at any other level. Going from 150 hp to 170 hp is a 13% power gain — in S2 class, the same PI investment might only get you 2%. That means you need to be strategic about where you spend.
Prioritize handling over power. A D Class car with race tires and sport suspension will beat a car with an engine swap and stock tires on 90% of circuits. I've tested this. On technical circuits like Ambleside, a Civic with 210 hp and stock tires gets absolutely destroyed by Miatas running 150 hp with proper suspension — the Miata carries 5-8 mph more through every corner, adding up to 2-3 seconds per lap. That gap is massive at these speeds.
Upgrade order that works: Sport tires first (cheap in PI, makes everything else work better), then race suspension, then anti-roll bars, then a sport exhaust for a small power bump. Only do engine upgrades if you have PI left after handling is sorted. For FWD cars, a limited-slip diff is worth every single PI point — it completely transforms corner exit behavior. No, seriously. It turns a plow-y mess into something that actually rotates.
Common mistakes I see: Don't max out tire width on D Class cars — the PI cost is high and the grip benefit is minimal at these speeds. Avoid AWD swaps entirely; the drivetrain loss eats too much of your limited power. And don't ignore weight reduction — shaving 50 kg off a D Class car matters more than adding 15 hp. The math don't lie on this one.
Best Events for D Class
D Class absolutely shines on tight, technical road circuits where power isn't the deciding factor. Ambleside Village Circuit, the new Kyoto Old Town route, and basically any street scene race with lots of 90-degree turns are D Class strongholds. For dirt racing, D Class is surprisingly fun — the low speeds mean you can actually control slides instead of just hanging on for dear life. Cross-country is more hit-or-miss; the lightweight cars that dominate tarmac get bounced around too much on rough terrain. Bring a truck for those.
Oh, and D Class is the best bracket for learning manual with clutch. Speeds are low enough that you won't miss shifts catastrophically, and the technique you build here transfers directly to faster classes. I learned manual with clutch on a D Class Miata and it was the best decision I ever made in this game.