
The fastest car in Forza Horizon 5 for pure, straight-line top speed is the 2019 Rimac Concept Two. Based on in-game testing and community leaderboards, this all-electric hypercar can reach a verified top speed of over 268 mph (431 km/h) under optimal conditions. While other cars might accelerate quicker off the line, no other production vehicle in the game consistently matches or exceeds this terminal velocity.
The Rimac's dominance comes from its incredible electric powertrain. It features an all-wheel-drive system powered by four electric motors, generating a combined 1,914 horsepower and 1,696 lb-ft of instant torque. This massive power allows it to overcome aerodynamic drag at extreme speeds more effectively than traditional internal combustion engines. For top speed runs, you'll need a long, flat stretch of highway, ideally using the El Camino section of the map.
It's important to distinguish between top speed and acceleration. The 2020 Jesko, for instance, is often cited as the fastest car for the game's main "Horizon Mexico Circuit" due to its superior acceleration and downforce, making it quicker over a lap. But for a pure speed trap or highway run, the Rimac Concept Two is the king.
| Car | Top Speed (Est. mph/km/h) | 0-60 mph (Est. seconds) | Power (HP) | Car Type |
|---|---|---|---|---|
| Rimac Concept Two (2019) | 268+ mph / 431+ km/h | 2.5 | 1,914 | Electric Hypercar |
| Koenigsegg Jesko (2020) | 262 mph / 422 km/h | 2.5 | 1,280 | Hypercar |
| Hennessey Venom F5 (2021) | 258 mph / 415 km/h | 2.6 | 1,176 | Hypercar |
| SSC Tuatara (2020) | 255 mph / 410 km/h | 2.7 | 1,350 | Hypercar |
| Bugatti Chiron (2018) | 253 mph / 407 km/h | 2.9 | 1,103 | Hypercar |
Ultimately, your choice depends on the event. For drag strips and speed zones focused on top speed, the Rimac is your best bet. For circuit races with corners, a car like the Jesko is likely a more balanced and faster option overall.

Hands down, it's the Rimac Concept Two. This electric beast is built for one thing: going ridiculously fast in a straight line. I've hit over 268 mph on the highway. Other cars like the Jesko are quicker around a track, but if you just want to see the biggest number pop up on your screen, the Rimac is the car you need. Just make sure you have a long enough runway to slow down!

You have to look at the power-to-drag ratio. The Rimac Concept Two's electric motors deliver relentless power all the way to its top speed, unlike piston engines that can run out of breath. It's not just about horsepower; it's about efficiently pushing through the air at 250+ mph. The car's sleek design and instant torque from its AWD system give it a decisive edge in a pure top speed battle against gasoline-powered rivals.

From a competitive standpoint, "fastest" means lowest lap time, not highest speedometer reading. The Jesko, with its sophisticated aerodynamics and downforce, is faster on most circuits. It maintains higher speeds through corners, which is more important for winning races. The Rimac is a specialist for top speed runs, but the Jesko is the faster all-around tool for actually competing in the majority of events in Horizon 5.

I love the sheer silence of the Rimac Concept Two. You floor it, and there's no roar, just a surreal whine and you're pinned to your seat as the world blurs. Hitting its top speed feels more like a sci-fi movie than driving a car. It’s a different kind of thrill compared to the screaming engine of a . For that unique, futuristic experience of achieving an incredible top speed, the Rimac is in a class of its own.


