This list includes only the cars that can go over 400 km/h or 250 m/h, which is the minimum for extreme track racing. The top speed parameters below indicate the performance of each vehicle in their vanilla versions, without being tuned. 

Of course, you can boost the speed of these cars even further by tuning them in the in-game garage.

Fastest Cars in Forza Horizon 5

Koenigsegg Jesko

Top Speed: 488 km/h; 303 m/h Price: 2,800,000 CR

The Jesko model of the Swedish manufacturer Koenigsegg was first introduced in Forza Horizon 4. But the same model got some serious boost to its speed in Forza Horizon 5, and now it can reach up to almost 500 km/h if unobstructed.

The car is based on 5.0L Twin-Turbocharged V8 engine with rear-wheel drive and 9-speed transmission, which is absolutely necessary for longer acceleration times, as reaching this kind of speed takes time.

You can unlock this car in Forza Horizon 5 by completing the “Cinema Irrealiste” accolade.

Koenigsegg Agera RS

Top Speed: 443 km/h; 275 m/h Price: 2,000,000 CR

Koenigsegg Agera RS is not only one of the fastest cars in Forza Horizon 5, but it is also the actual world record holder among top speed commercially available vehicles in real life.

It is based on 5.0L Twin-Turbocharged V8 engine with rear-wheel drive and 7-speed transmission. This car can reach 100 km/h in just 2.8 seconds, and it can be purchased from the Autoshow.

Koenigsegg One:1

Top Speed: 440 km/h; 273 m/h Price: 2,800,000 CR

Many players will know this model from the previous installments of the Forza series, as it has been present in the game since Forza Motorsport 6 (2015). Since then its speed limits have been consistently growing, and now it is marked as the third fastest vehicle in Forza Horizon 5.

Koenigsegg One:1 utilizes 5.0L Twin-Turbocharged V8 engine with rear-wheel drive and 7-speed transmission. Among all top speed cars in the game, this model also has the best braking system.

McLaren Speedtail

Top Speed: 436 km/h; 271 m/h Price: 2,250,000 CR

Speedtail is McLaren’s, the famous Formula 1 manufacturer, fastest commercially available car.

What’s really interesting about this car is that it uses the 4.0L Twin-Turbocharged Hybrid V8 engine, which is half-electric, producing 1036 BHP. This also makes Speedtail the fastest accelerating McLaren vehicle in their entire hypercar line.

Hennessey Venom GT

Top Speed: 435 km/h; 270 m/h Price: 1,200,000 CR

Here is one of the more affordable top speedsters on our list. It is also one of the lightest sportscars in the game at only 1.2K kg. This allows Hennessey Venom GT to reach those remarkable speed limits that break even such famous manufacturers like Bugatti and Ferrari.

This American hypercar is built on 6.2L Twin-Turbocharged V8 engine with rear-wheel drive and 6-speed Transmission.

Bugatti Chiron

Top Speed: 433 km/h; 269 m/h Price: 2,400,000 CR

Although Koenigsegg cars are considered the fastest in Forza Horizon 5, Bugatti Chiron can get a serious advantage in the races due to its much faster acceleration. It takes some time for Koenigsegg vehicles to get to their top speed limits, but Chiron does it in almost an instant.

The car is built on 8.0L Quad-Turbocharged W16 engine with all-wheel drive and 7-speed transmission, and it is available for purchase via Autoshow.

Bugatti Veyron Super Sport

Top Speed: 430 km/h; 267 m/h Price: 2,200,000 CR

Bugatti Veyron could have been up there alongside Koenigsegg cars, as one of the top speed choices in Forza Horizon 5, but due to its heavy weight it loses a bit in both speed and handling.

It is based on the same 8.0L Quad-Turbocharged W16 engine as Bugatti Chiron, and it can be unlocked by completing the “Like a Boss” accolade.

Zenvo TSR-S

Top Speed: 426 km/h; 265 m/h Price: 1,200,000 CR

The Danish supercar Zenvo boasts with an innovative aerodynamic design that allows it to reach maximum speed wihout a significant torque.

The formula of success is in the design of the car’s body that involves a front splitter, a rear diffuser, an air scoop, and most importantly, the centripetal wing. This design in conjunction with 5.8L Supercharged V8 engine really gives this car a serious boost to its top speed limit.

Bugatti Divo

Top Speed: 422 km/h; 262 m/h Price: 3,000,000 CR

This high-concept car from Bugatti is based on another one of their concept models, which is Bugatti Chiron. This one is built on 8.0L Quad-Turbocharged W16 engine with all-wheel drive and 7-speed transmission.

Bugatti Divo can reach 100 km/h in 2.4 seconds, which is faster than Koenigsegg Agera RS and many other hypercars in Forza Horizon 5. Its only drawback is that it is one of the more expensive cars in this category.

Rimac Concept Two

Top Speed: 420 km/h; 261 m/h Price: 2,000,000 CR

Rimac is the fastest car among all the electric cars in Forza Horizon 5. It is based on Electric4 liquid-cooled motors with all-wheel drive and only 2-speed transmission.

Rimac Concept Two has a tremendous acceleration that allows it to reach 100 km/h in just 1.8 seconds, which is unbelievably fast. Luckily, you can purchase this car on Autoshow for a decent price.

Hoonigan Ford “Hoonicorn” Mustang

Top Speed: 418 km/h; 260 m/h Price: 500,000 CR

Hoonicorn is the cheapest car on our list, but don’t underestimate its power, as it is also one of the fastest cars in the game.

With a powerful 6.7L Twin-Turbocharged V8 engine it can produce 1400 BHP, which allows it to perform well in both drift racing and straight-line racing.

If you’re looking for a more affordable car in the 400+ km/h range of vehicles, then Hoonicorn offers a great deal.

McLaren P1

Top Speed: 407 km/h; 253 m/h Price: 1,350,000 CR

Often called a heavier but faster version fo Ferrari LaFerrari, McLaren P1 is another hybrid supercar that can race against the fastest cars in Forza Horizon 5.

This vehicle utilizes two engines: 3.8L Naturally-Aspirated V8 and an additional electric engine with 903 BHP.

If you played Forza Motorsport 5 prior to purchasing Forza Horizon 5, then you can get McLaren P1 for free as a loyalty reward.

Koenigsegg Regera

Top Speed: 400 km/h; 250 m/h Price: 1,900,000 CR

The last car on our list that can reach 400 km/h without any additional tuning is another Koenigsegg hypercar.

Just like McLaren models, this one is also based on hybrid engine design, involving 5.0L Naturally-Aspirated V8 engine and three YASA-developed electric motors.

Koenigsegg Regera can be unlocked after completing the “Completionist” accolade.

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Those are the fastest cars in Forza Horizon 5. If you want to learn more about this great game, check out our other Forza Horizon 5 guides.