The Ferrari 599XX Evolution tops a widely cited Forza Horizon 4 list at 320 mph before modification. With top-speed tuning, a separate guide reports it at 323 mph. Those figures use different setups, so they should not be treated as one like-for-like ranking.
Fastest cars before modification
Dexerto published this ranking on August 22, 2021, describing the figures as top speeds players had reached before modifying the cars. They are guide-reported values, not results from a standardized official test. The guide also notes that modifications can raise the speeds. Read the Dexerto ranking.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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Forza Horizon 4 | $56.98 | Buy on Amazon |
| 2 |
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Forza 4 | $41.00 | Buy on Amazon |
| 3 |
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Forza Horizon 4: Standard Edition – Xbox One | $49.44 | Buy on Amazon |
| 4 |
|
Forza Horizon 6 | Standard Edition | XBOX Series X | $63.99 | Buy on Amazon |
- Ferrari 599XX Evolution — 320 mph
- Mosler MT900S — 300 mph
- Shelby Monaco King Cobra — 290 mph
- Koenigsegg Agera RS — 285 mph
- Koenigsegg One:1 — 270 mph
- Hennessey Venom GT — 270 mph
- Bugatti Chiron — 265 mph
- Bugatti Veyron Super Sport — 265 mph
- Koenigsegg Agera — 260 mph
- Ferrari LaFerrari — 258 mph
How the tuned-speed list differs
Prima Games published a separate list on June 17, 2022, based on what it calls the best top-speed tuning settings. Its figures are also guide-reported, rather than independently verified standardized test results. Its reproduced sequence is not fully sorted by speed: the Agera RS is listed after the McLaren F1 despite having a lower reported speed. The table below sorts the guide’s figures from highest to lowest. Read the Prima Games guide.
| Rank by reported speed | Car | Reported tuned top speed |
|---|---|---|
| 1 | Ferrari 599XX Evolution | 323 mph |
| 2 | Mosler MT900S | 302 mph |
| 3 | Koenigsegg CC8S | 298.5 mph |
| 4 | McLaren F1 | 285 mph |
| 5 | Koenigsegg Agera RS | 284 mph |
| 6 | Bugatti EB110 SS | 282.5 mph |
| 7 | Koenigsegg Agera | 273 mph |
| 8 | Pagani Zonda Cinque | 272 mph |
| 9 | Bugatti Chiron | 269 mph |
Prima’s guide describes finding shared tunes through Horizon Festival → Garage → Upgrades and Tuning → Upgrades → Find New Tunes. That is the guide’s stated route; whether a particular shared tune remains available online is not established here.
Quick Recap
Rank #4
- DISCOVER JAPAN — Explore Horizon’s largest map ever, set in Japan and packed with dramatic verticality, diverse biomes, and spectacular open‑road driving routes.
- CRUISE ICONIC LOCATIONS — Drive through Tokyo’s city streets, suburbs, docks, and industrial districts in the most expansive urban environment in Horizon history.
- DRIVE 550+ REAL‑WORLD CARS — Collect and customize over 550 licensed vehicles with body kits, Forza Aero, window liveries, and enhanced steering animations.
- BUILD YOUR ESTATE — Purchase beautiful homes across Japan and customize garages to showcase your growing car collection as you rise through the Horizon Festival.
- JOIN THE HORIZON COMMUNITY — Race, cruise, and compete with friends in Time Attack Circuits, Drag Meets, Car Meets, and Horizon multiplayer modes, including Spec Racing Championships.
Rank #3
- Seasons change everything. For the first time in the racing and driving genre, experience dynamic seasons in a shared open-world. Explore beautiful scenery, collect over 450 cars, and become a Horizon Superstar in historic Britain. (Some cars provided by online update.
- Britain like you’ve never seen it. Discover lakes, valleys, castles, and breathtaking scenery all in spectacular native 4K and HDR on Xbox One X and Windows 10.
- Master driving in all seasons. Explore a changing world through dry, wet, muddy, snowy, and icy conditions.
- New content every week. Every week, a new season change brings new themed content, gameplay, challenges, and rewards.
- Go it alone or team up. Play solo or cooperatively. Join team multiplayer for casual fun or ranked teams to take on the best in the world. Xbox live gold (sold separately) required for online multiplayer on Xbox consoles.
Rank #2
- Genre-defining
- Controller-based racing
- The power and freedom of Kinect
- Content from leading brands like Top Gear to create an automotive experience unlike anything before it
- Genre-defining.
#1 Best Overall
- 0889842392500
- The Forza Horizon 4 Standard Edition includes: Forza Horizon 4 game disc
- SEASONS CHANGE EVERYTHING
- Britain Like You've Never Seen it. Discover lakes, valleys, castles, and breathtaking scenery all in spectacular native 4K and HDR on Xbox One X and Windows 10
- Master Driving in All Seasons. Explore a changing world through dry, wet, muddy, snowy, and icy conditions
What to take from the rankings
- The Ferrari 599XX Evolution leads both guides, but the reported speed is 320 mph before modification in Dexerto and 323 mph with top-speed tuning in Prima Games.
- The Mosler MT900S is second in both lists: 300 mph before modification in Dexerto and 302 mph in Prima Games’ tuned list.
- Do not combine the two lists into one ranking: their setup assumptions differ, and the guides do not establish a common controlled test method.
- Top speed alone does not establish which car is best for handling, lap time, acceleration, or general racing. The cited guides do not offer comparable results for those measures.
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