FH6 Best D & C Class Cars — Low PI, High Fun
Most players ignore D and C class entirely. They buy the game, jump into whatever S2 hypercar the game throws at them in the intro, and never look back. I did the same thing for my first 30 hours. Then a friend challenged me to a D class race and I spent three laps learning more about driving than I had in the previous 30 hours combined. Low class racing is the best driving school in Forza Horizon 6, and once you get into it, it might also be the most fun you'll have in the game.
The philosophy is different down here. In S2 and S1, you're managing power — too much throttle spins the tires, too much speed overwhelms the aero, too much brake locks the wheels. In D and C class, you're managing momentum. There's no horsepower to rescue you from a slow corner exit. Every mph you lose takes half a straight to recover. You learn corner entry and exit with a precision that hypercars never demand from you. It makes you faster in every other class. Here's everything you need to know about racing the slow stuff fast.
The Low Class Philosophy: Momentum Over Power
The defining characteristic of D class (PI 100-500) and C class (PI 501-600) is that cars have just enough power to be interesting but not enough to be a crutch. The average D class car makes between 60 and 140 horsepower. The average C class car makes between 120 and 220 horsepower. These are numbers — a modern Camry has more power than a fully-built C class racer. The speed comes from not losing it in the first place.
The practical implication: braking points are later in low classes because you're carrying less speed into corners. But exit speed matters more in low classes because you don't have the power to recover from a slow exit. The rhythm is different — brake late, carry maximum mid-corner speed, get on throttle early and smoothly, and protect your momentum like it's your last dollar. If you downshift too early and bog the engine, or if you over-slow for a corner and lose 5 mph more than you needed to, that mistake costs you 0.3 seconds. In S1, the same mistake costs 0.1 because you have the power to accelerate back up to speed. Low class racing punishes mistakes harder, which means it rewards precision more. That's why it's so satisfying.
Best D Class Cars (PI 100-500)
1. Mini Cooper S (1965) — The D Class Benchmark
At 638 kg in race trim with the 1.3-liter A-series making about 90 hp at 500 PI, the classic Mini is the fastest D class car on any circuit with more than three corners per mile. The physics are almost unfair — the polar moment of inertia is so low that you can change direction faster than cars with double the power. On tight city circuits the Mini is untouchable. It weighs less than a modern superbike and handles like one.
Build: race weight reduction, sport tires, full exhaust and intake, cams. Skip the turbo — the A-series doesn't respond well to forced induction at this PI level. Final drive 4.30. Tire pressure 32 PSI all around. Camber -1.5 front, -1.0 rear. The Mini's only weakness is terminal velocity — 95 mph is about it, and on tracks with straights over 400 meters, bigger-engined cars catch and pass you. Pick your battles accordingly.
2. Volkswagen Beetle (1963) — Rear-Engine Grip
The air-cooled Beetle is the anti-Mini. Where the Mini is front-heavy and agile, the Beetle is rear-heavy and stable. The 1.2-liter flat-four makes about 65 hp at 500 PI — not a typo, sixty-five — but at 730 kg the power-to-weight is comparable to the Mini. The rear-engine layout gives it two advantages: traction off the line (weight over the drive wheels) and lift-off rotation (the pendulum effect when you lift mid-corner).
The Beetle is the easiest D class car to drive fast because the rear end never steps out unexpectedly — all the weight is back there planting the tires. The tradeoff: terminal understeer on corner entry if you brake too late and don't trail-brake properly. Learn to trail-brake deep into corners and the Beetle rewards you with a clean, predictable rotation. Build: race weight reduction, sport tires, exhaust. Final drive 3.90. Rear tire pressure 28 PSI. Rear ARB at 55. This car won't set leaderboard times on handling circuits, but it will finish every race facing the right direction.
3. Ford Anglia 105E (1959) — The Harry Potter Car That Races
The Anglia is a meme car until you build one, and then it's a legitimate D class podium threat. The 1.0-liter Kent engine makes about 75 hp at 500 PI — tiny, but the car weighs 740 kg. Front-engine, rear-drive with a solid rear axle that sounds terrible on paper but works beautifully at D class speeds. The narrow tires (145-section front, 155-section rear) mean the grip is limited, but the car is so light that you rarely exceed the available grip anyway.
What makes the Anglia special is how much fun it is to drive at the limit. The narrow tires and low weight mean it slides progressively — you feel the rear start to go and you have time to catch it. At D class speeds (topping out around 90 mph), a slide isn't scary, it's entertainment. Build the Anglia if you want to learn car control. Build: race weight reduction, sport tires, intake and exhaust, cams. Final drive 4.10. Tire pressure 30 PSI all around. Rear ARB at 50 for progressive breakaway.
4. Datsun 510 (1970) — JDM Classic That Handles
The 510 was Japan's answer to the BMW 2002, and in FH6 it delivers on that promise. The 1.6-liter L16 inline-four makes about 120 hp at 500 PI with bolt-ons and a cam. 890 kg with race weight reduction. Independent rear suspension (semi-trailing arm) — rare for a 1970 sedan — gives it rear grip that the solid-axle classics can't match. Front-engine, rear-drive with a surprisingly balanced chassis.
The 510's party trick: it takes engine swaps better than almost any other D class car. Drop in the 2.6L 4-Rotor and you've got a 400 hp monster — but that pushes it well out of D class. Keep the L16 and enjoy one of the most balanced low-class chassis in the game. Build: race weight reduction, sport tires, intake, exhaust, cams. Final drive 3.90. Tire pressure 28 PSI all around. Camber -1.2 front, -0.8 rear. The 510 is my pick for "best D class car to learn on" because it does everything well without any bad habits.
5. Morris Minor 1000 (1958) — The Gentleman's Racer
Another British classic that punches above its weight. The 1.0-liter A-series (same family as the Mini's engine) makes about 70 hp at 500 PI. 775 kg. The Minor has a surprisingly sophisticated front suspension for its era — torsion bars with lever-arm dampers that provide progressive spring rates. On bumpy D class circuits the Minor absorbs surface irregularities that upset stiffer-sprung cars.
It's not the fastest D class car by any measure, but it's one of the most pleasant to drive. The steering is light and communicative, the chassis rolls predictably, and the whole experience feels like a Sunday drive that happened to turn into a race. Build: race weight reduction, sport tires, exhaust, cams. Final drive 4.20. Tire pressure 30 PSI front, 28 PSI rear. Rear ARB at 45. Build this if you want a car that makes you smile.
Best C Class Cars (PI 501-600)
C class is D class with enough power to get yourself in trouble. The PI jump from D to C unlocks turbo upgrades, wider tire options, and in some cases race suspension on cars that couldn't fit it at 500 PI. The racing gets faster but the momentum philosophy still applies — you're managing weight transfer and corner speed, not raw power.
1. Toyota Sprinter Trueno GT Apex (AE86, 1985) — The Legend
Yes, the Initial D car. Yes, it's actually fast in C class. The 1.6-liter 4A-GEU makes about 165 hp at 600 PI with cams, intake, and exhaust. 920 kg with race weight reduction. Front-engine, rear-drive with a live rear axle that gives it a playful, throttle-steerable balance. The AE86 is the most fun C class car because it's fast enough to challenge you but loose enough to punish overconfidence.
The Trueno's 4A-GE revs past 8,000 RPM with the right cams — unusually high for an engine of its era — and the power delivery is linear enough that you can modulate it mid-slide. It's a car that rewards smooth weight transfer. Brake, feel the nose dive and the rear lighten, turn in while trail-braking to rotate, then power out with the rear squatted and gripping. When you nail a sequence of corners in the AE86 you feel like you've accomplished something. Build: race weight reduction, sport tires, intake, exhaust, race cams. Final drive 4.30. Tire pressure 28 PSI all around. Rear ARB at 55. Camber -1.5 front, -1.0 rear. Skip the turbo at 600 PI — the naturally aspirated response is more useful than peak power.
2. Honda Civic Type R (EK9, 1997) — FWD Precision
The EK9 I recommended in B class also works brilliantly in C class, and at 600 PI you get to experience the chassis without the power masking its virtues. About 180 hp from the B16B, 1,040 kg. The front double-wishbone suspension gives turn-in bite that most C class cars can't match, and the lift-off oversteer characteristic is even more pronounced at lower speeds — you can genuinely steer the car with the throttle by lifting mid-corner.
The Civic's limitation in C class is that it's still FWD, which means corner exit traction is limited by the front tires doing double duty (steering and accelerating). On tight circuits this doesn't matter because the corner speeds are low enough that the tires have grip to spare. On tracks with medium-speed exits onto long straights, RWD cars pull ahead. Build: race weight reduction, sport tires, intake, exhaust, cams. Final drive 4.50. Front tire pressure 30 PSI, rear 34 PSI. Rear ARB at 65. Front toe out 0.3.
3. Mazda MX-5 Miata (1994, NA) — The Answer Is Always Miata
The NA Miata is excellent in every class from D to A, and C class might be where it shines brightest. About 155 hp from the 1.8-liter BP at 600 PI. 940 kg. The double-wishbone suspension and 50:50 weight distribution give it handling that's a class above its PI rating. Lap times in the C class Miata are often within a second of B class cars on handling circuits because the chassis is so efficient at carrying speed through corners.
The Miata at 600 PI teaches you to use every inch of the track. Since you can't rely on power, you learn to open the steering early on exit, use the full track width, and maintain momentum through sequences. These skills transfer directly to faster classes but they're easier to learn at C class speeds. Build: race weight reduction, sport tires, intake, exhaust, cams. Final drive 4.10. Tire pressure 28 PSI all around. Camber -1.8 front, -1.2 rear. The NA Miata in C class is what I hand to friends who say they don't understand what makes a car handle well. Five laps later, they understand.
4. Ford Escort RS1600 (1972) — The Fast Ford Before Fast Fords
The Mk1 Escort with the Cosworth BDA 1.6-liter twin-cam is a revelation in C class. About 160 hp at 600 PI. 880 kg. Front-engine, rear-drive with a live rear axle and leaf springs — sounds like a tractor, drives like a weapon. The Escort's advantage is predictability. The rear axle communicates exactly how much grip is left through the seat, and when it lets go it does so progressively.
On dirt the RS1600 is in its element — the soft suspension and rear-drive layout let you steer with the throttle through every corner. On road circuits it's a couple tenths off the Miata but the experience is more engaging because the car feels alive under you. Build: race weight reduction, rally tires if you're dirt-focused, sport tires if road-focused. Intake, exhaust, cams. Final drive 3.90. Tire pressure 28 PSI all around. Rear ARB at 45 for progressive breakaway. The BDA engine revs to 7,500 RPM with a mechanical soundtrack that's worth building the car for on its own.
5. Volkswagen Golf GTI MK1 (1983) — Hot Hatch Origin Story
The car that invented the hot hatch segment. 1.8-liter inline-four making about 140 hp at 600 PI. 880 kg with race weight reduction. FWD with a torsion beam rear axle that sounds basic but gives excellent rear-end stability under braking. The MK1 GTI is the easiest C class car to drive fast because it understeers safely at the limit — you push wide rather than spinning.
The MK1 GTI's party trick is curb-hopping. The soft suspension soaks up curbs without upsetting the chassis, which means you can take lines through chicanes that stiffer cars can't. On city circuits with heavy curb use — tight routes and urban sprints — the GTI gains time through every chicane by straight-lining the curbs. Build: race weight reduction, sport tires, intake, exhaust, cams. Final drive 4.00. Tire pressure 30 PSI front, 32 PSI rear. Front ARB at 50, rear ARB at 1.0 for maximum front grip.
Tuning for Low Class Racing
Low class tuning has different rules than high class tuning. The principles are reversed because the problems are different. Here's what works, verified across about 80 D and C class builds.
Weight reduction is king. At D and C class, every kilogram matters more than every horsepower because you have so little power to begin with. Race weight reduction is a mandatory first upgrade on every low class car. Period. It improves acceleration, braking, cornering, and tire life all at once, and at low PI the PI cost is reasonable (20-30 points). A 20 kg reduction on a 750 kg D class car is a 2.7% weight reduction. The same 20 kg on a 1,500 kg S1 car is 1.3%. The proportional benefit is doubled at low weights.
Then tires, then power. After weight reduction, sport tires. Always. At D class speeds the difference between stock tires and sport tires is about 0.8-1.2 seconds per lap — larger than any power upgrade you can afford with the same PI. Race tires cost too much PI at D class (40-50 points) and the grip benefit at 80 mph is marginal compared to what sport tires give you. Race tires become worth considering in C class on very light cars under 1,000 kg, where the proportional grip gain is larger.
Power: naturally aspirated over forced induction. Turbos and superchargers cost 20-35 PI at these classes, which is a huge percentage of your budget. The power gain is real but the delivery is peaky — you get a surge of torque in a narrow RPM band. In momentum-dependent racing where smoothness matters, a linear power curve from camshafts and exhaust (12-18 PI total) is usually faster around a lap than a 50 hp turbo spike that upsets the chassis mid-corner. The exception: engines with tiny displacement that need forced induction to be competitive. The Mini's 1.3-liter A-series and the Beetle's 1.2-liter flat-four gain proportionally more from a turbo than larger engines. But even then, test both builds — the naturally aspirated version is often only a tenth slower and far easier to drive.
Brakes are optional. At D class speeds (topping out around 90-100 mph), stock brakes with sport pads are more than adequate for any circuit. Race brakes cost 10-15 PI and might save you 3 feet of braking distance. Not worth it. Spend the PI on tires instead — better corner entry speed from grippier tires saves more time than 3 feet of shorter braking.
Why Low Class Racing Makes You Better
I spent my first 50 hours in FH6 chasing S2 lap times and wondering why I'd plateaued. Then I spent a weekend doing nothing but C and D class racing, and when I went back to S2 I was half a second faster everywhere. The reason is simple: low class racing forces you to learn weight transfer. In an S2 car with 900 hp and racing slicks, you can be rough with your inputs and the aero and mechanical grip cover for you. In a D class car with 90 hp and 145-section tires, a jerky steering input or an abrupt throttle application costs you 3 mph of corner speed, and you feel it immediately. You learn smoothness not because someone told you to be smooth, but because the car punishes roughness in real time.
If you're serious about improving your lap times in any class, do this: build a C class Miata, a D class Mini, and a B class S2000. Spend a week racing nothing but those three cars. When you go back to your S2 leaderboard car, you'll be faster. Guaranteed.