FH6 Top 10 Fastest Cars Ranked by Top Speed
Top speed in Forza Horizon 6 has been recalibrated from FH5. The new aerodynamic model applies more drag at 200+ mph, so cars that hit 300 mph in FH5 do not necessarily reach the same numbers here. This ranking is based on actual testing on the east highway, full throttle, no downhill assist — just flat-out speed in a straight line. Every number below was recorded with the car fully upgraded to its highest-power engine configuration and tuned for top speed. Stock numbers are included so you know what you are working with before you spend credits.
For an overview of every vehicle available in the game, check the FH6 complete car list. If you need baseline tuning numbers for speed builds, use the FH6 Tuning Calculator.
10. Bugatti Veyron Super Sport
Stock top speed: 268 mph (431 km/h) | Upgraded top speed: 279 mph (449 km/h) | Cost: 2,200,000 CR (Autoshow)
The Veyron Super Sport was the production car speed record holder for years, and in FH6 it still holds its own. Stock, it is fast enough for most highway runs. Upgraded, it gains about 11 mph — not a huge jump, because the Veyron's W16 engine is already near its airflow ceiling. The car is available in the Autoshow for 2.2 million CR, making it one of the more accessible hypercars on this list. The Veyron's main weakness is its weight — at 1,838 kg, it is the heaviest car in the top 10, which limits its acceleration past 250 mph. Tune the final drive to 2.45 and drop aero to minimum. Do not bother with an engine swap — the stock W16 with twin turbos is the best powerplant for this chassis.
9. McLaren Speedtail
Stock top speed: 250 mph (402 km/h) | Upgraded top speed: 282 mph (454 km/h) | Cost: 2,400,000 CR (Autoshow) or Wheelspin
The Speedtail is the outlier on this list — it gains over 30 mph from upgrades, more than any other hypercar. The stock hybrid drivetrain is limited by software, but once you strip the hybrid system and swap in a pure combustion powertrain (the Racing V12 is the best option), the Speedtail becomes an entirely different animal. Its low drag coefficient (0.275 Cd) means it cuts through air better than the Veyron or Chiron. The trade-off is traction — the Speedtail has a longer wheelbase and less downforce, making it twitchy at full speed. You can get the Speedtail from the Autoshow or as a rare Wheelspin reward. If you pull it from a Wheelspin, you just saved 2.4 million credits.
8. Rimac Nevera
Stock top speed: 258 mph (415 km/h) | Upgraded top speed: 285 mph (459 km/h) | Cost: 2,800,000 CR (Autoshow)
The Nevera is the fastest electric car in FH6 and the only EV on this list. Its quad-motor setup produces 1,914 HP stock, and fully upgraded it pushes past 2,200 HP. Electric motors deliver instant torque, so the Nevera accelerates harder than any combustion car below 200 mph. The problem: electric motors run out of steam at high RPM. Above 250 mph, the acceleration curve flattens significantly compared to combustion engines that can keep revving. The Nevera is best for shorter speed trap runs rather than sustained top speed. Buy it from the Autoshow. Keep the battery and motors stock — upgrades to electric drivetrains are minimal. Focus tuning on final drive (2.30) and minimum downforce.
7. SSC Tuatara
Stock top speed: 283 mph (455 km/h) | Upgraded top speed: 289 mph (465 km/h) | Cost: 1,900,000 CR (Autoshow)
The Tuatara is the highest-stock-speed car on this list that costs under 2 million CR. Its 5.9L twin-turbo V8 has massive headroom — upgrading turbos, intercoolers, and cams pushes it from the stock 1,750 HP to over 2,100 HP. The problem with the Tuatara is stability. It has a shorter wheelbase and lighter chassis than the Jesko or Venom F5, so it gets unsettled by road imperfections at 280+ mph. Run maximum tire pressure (42 PSI) and stiffen the suspension to reduce body movement at speed. For the price, the Tuatara is the best performance-per-credit hypercar in FH6.
6. Bugatti Chiron Super Sport 300+
Stock top speed: 273 mph (439 km/h) | Upgraded top speed: 293 mph (472 km/h) | Cost: 3,500,000 CR (Autoshow)
The Chiron Super Sport 300+ gets a 20 mph bump from upgrades — significant because most Bugattis top out at around 10-12 mph gains. The quad-turbo W16 has more untapped potential than the Veyron's engine, and the 300+ specific aero package reduces drag at high speed. The car is pricey at 3.5 million CR. If you are grinding specifically for a top speed car, there are better value options on this list, but if you already own the 300+ from the seasonal playlist or a lucky Wheelspin, it is absolutely worth building. Tune final drive to 2.38 and front aero to minimum. Rear aero is not adjustable on this car, which is actually a benefit — you cannot accidentally add drag.
5. Koenigsegg Agera RS
Stock top speed: 278 mph (447 km/h) | Upgraded top speed: 297 mph (478 km/h) | Cost: 2,500,000 CR (Autoshow)
The Agera RS was the car that averaged 277.9 mph on a public road in Nevada in 2017. In FH6, it benefits from the Koenigsegg lightweight philosophy — at 1,395 kg, it is over 400 kg lighter than the Bugattis. Less weight means the same horsepower pushes you faster. The 5.0L twin-turbo V8 reaches 1,960 HP when fully upgraded. The car's main weakness is rear-end stability under braking at speed. When you lift off the throttle at 290+ mph, the rear can step out. Keep your inputs smooth. Final drive at 2.42, race tires at 40 PSI, minimum downforce on both front and rear.
4. Hennessey Venom GT
Stock top speed: 270 mph (435 km/h) | Upgraded top speed: 300 mph (483 km/h) | Cost: 1,200,000 CR (Autoshow) or Barn Find
The Venom GT is the dark horse of this list. It is one of two cars on this ranking that costs under 1.5 million CR, and it gains 30 mph from upgrades. Based on a stretched Lotus Exige chassis with a 7.0L twin-turbo LS V8, the Venom GT is absurdly light — 1,244 kg. The power-to-weight ratio when fully upgraded is 1.61 HP/kg, higher than the Chiron, higher than the Agera RS. The catch: it is terrifying to drive at speed. The short wheelbase and massive power make it want to rotate with every steering input. You need smooth hands and a stable tune. If you can handle it, the Venom GT is the best speed car for the money in FH6. Also available as a Barn Find — if you get it that way, the build cost drops to just upgrade parts.
3. Bugatti Bolide
Stock top speed: 290 mph (467 km/h) | Upgraded top speed: 304 mph (489 km/h) | Cost: 3,800,000 CR (Autoshow)
The Bolide is Bugatti's track-only hypercar, and in FH6 it sits third in top speed. What makes the Bolide unique is that it hits its top speed while still maintaining some downforce — it is not a zero-downforce missile like some other cars on this list. The W16 engine here is lighter and more aggressively tuned than in the Chiron, producing 1,825 HP stock. Fully upgraded with turbos, engine internals, and weight reduction, it hits 2,050 HP. The Bolide's active aero system reduces drag at speed, so even with some downforce, it does not sacrifice much top end. The price is steep at 3.8 million, but you are buying a car that is competitive in both speed traps and cornering events.
2. Hennessey Venom F5
Stock top speed: 295 mph (475 km/h) | Upgraded top speed: 311 mph (500 km/h) | Cost: 2,600,000 CR (Autoshow)
The Venom F5 was built to hit 311 mph in real life, and in FH6 it lives up to that target. The 6.6L twin-turbo V8 (codenamed "Fury") makes 1,817 HP stock, and the fully built version with upgraded cams, turbos, intercoolers, and exhaust pushes past 2,250 HP. At 1,385 kg, the carbon fiber chassis is extremely light. The F5's strength is its acceleration between 200-300 mph — it pulls harder in that range than any other car on this list. The weakness is the same as the Venom GT: short wheelbase, nervous at speed. You will need a few runs to get a clean top speed pass. Tune final drive to 2.25 — that is lower than most cars because the F5's power band is broad enough to pull a taller gear. Best value among the 300+ mph club.
1. Koenigsegg Jesko Absolut
Stock top speed: 290 mph (467 km/h) | Upgraded top speed: 331 mph (532 km/h) | Cost: 3,200,000 CR (Autoshow)
The Jesko Absolut is the fastest car in Forza Horizon 6. Period. No debate. Koenigsegg built this car with a singular goal — maximum top speed — stripping every element that creates drag. It has no front hood ducts, no large rear wing, and the rear wheel covers reduce turbulence. The result is a drag coefficient of 0.278 Cd, comparable to a Tesla Model 3. The 5.0L twin-turbo V8 makes 1,600 HP stock and 2,100+ fully upgraded, running on E85 for the maximum tune. At 1,390 kg, it is among the lightest hypercars.
The Absolut is the easiest 300+ mph car to drive. Its longer wheelbase and Koenigsegg's Triplex suspension keep it planted at speeds where other cars feel like they are floating. You still need a clean run — do not jerk the wheel at 320 mph — but the Absolut forgives small mistakes that would spin out a Venom. Tune: final drive 2.20, race tires at 40 PSI all around, max front camber reduced to -0.5 for straight-line stability, and all aero — if any is fitted — set to minimum. You can get it from the Autoshow for 3.2 million CR. It is expensive, but if top speed is your thing, this is the only car that matters.
Top Speed Tuning: What Actually Works
After building and testing these cars, here is what the data says about speed tuning in FH6.
Final Drive Ratio
Lower numerical value = higher theoretical top speed. But if you go too low, the car cannot overcome aerodynamic drag and tops out before hitting redline. The sweet spot is where your car reaches redline in top gear at the exact speed where drag force equals engine power. For most 2,000+ HP builds, that sweet spot is between 2.20 and 2.55. Start at 2.50, do a test run, and adjust: if you hit redline before the car stops accelerating, lower the final drive. If the car stops accelerating before redline, raise it.
Aero Settings
Front and rear aero produce downforce, which is drag at high speed. For top speed runs, both front and rear aero should be at minimum. Some cars — the Absolut and Speedtail — have no adjustable aero, which is a benefit. If a car has an adjustable rear wing, removing it entirely (if the game allows) is better than setting it to minimum.
Tire Pressure
Higher tire pressure reduces rolling resistance. Run 38-42 PSI on all four tires. The trade-off is reduced grip, but for top speed you are going straight and do not need cornering grip. If the car feels unstable, drop front tires to 36 PSI and keep rears at 40.
Suspension
Stiff springs and dampers keep the car settled at speed. Run springs at 80-90% of max stiffness. Anti-roll bars at maximum. Ride height at minimum. The goal is to eliminate body movement that creates aerodynamic instability at 280+ mph.
Horsepower vs. Weight
For top speed, horsepower matters more than weight. Weight affects acceleration but not top speed — once you reach terminal velocity, the only forces that matter are engine power and aerodynamic drag. A 1,000 HP car that weighs 900 kg will have the same top speed as a 1,000 HP car that weighs 1,800 kg, all else being equal. So prioritize power upgrades over weight reduction if you are purely chasing top speed. Weight reduction helps get to top speed faster, but it does not change the ceiling.
Best Highway for Testing
The main highway runs north-south along the eastern edge of the FH6 map. It is roughly 8.2 km (5.1 miles) of mostly straight road with two gentle curves. The best starting point is the northern end — the road has a very slight descent heading south, which gives you an extra 1-2 mph. Avoid the west-side highway loop; it has more traffic and sharper curves that kill momentum. For maximum run-up, start from the dirt road connection north of the highway and build speed before you hit the asphalt.
FH6 Fastest Cars FAQ
What is the fastest car in Forza Horizon 6?
The Koenigsegg Jesko Absolut is the fastest car in FH6, reaching 331 mph (532 km/h) when fully upgraded with the correct tune. Stock, it hits 290 mph. The Hennessey Venom F5 is second at 311 mph fully upgraded.
How do I reach max speed in FH6?
Use the east highway for testing. Tune final drive to the correct ratio for your car's power band (typically 2.20-2.55), set aero to minimum, run tire pressure at 40 PSI, and stiffen suspension to reduce body movement at speed.
Can any car reach 300 mph in FH6?
No. Only hypercars with extremely high horsepower (1,500+) after upgrades and low drag coefficients can break 300 mph. Most sports cars and muscle cars will top out between 220-270 mph regardless of tuning or upgrades.