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Bugatti reported a 304.773-mph (490.484-km/h) run in 2019 by a near-production Chiron prototype derivative at a German test track. It was a single-direction run, not a two-way production-car record. The research available here does not substantiate five cars that completed runs above 300 mph; the five cars below are documented benchmarks or projects that came close or have a 300-plus target.
What counts as a 300-mph run?
A reported top speed, a two-way average, and a target are different kinds of evidence. The run format and the vehicle’s status matter: a near-production prototype’s one-way test does not establish that a customer production car completed a verified two-way record.
The figures below are manufacturer-reported results or targets, as described in the cited manufacturer material. They are not a uniform independent comparison.
The 300-mph crossing and five close contenders
| Car | Reported speed | Run or status |
|---|---|---|
| Bugatti Chiron prototype derivative | 304.773 mph (490.484 km/h) | Bugatti-reported, one-way test-track run in 2019; near-production prototype derivative |
| Koenigsegg Agera RS | 277.87 mph (446.97 km/h) | Manufacturer-reported two-way average in 2017; customer-owned, homologated production car on a Nevada public road |
| SSC Tuatara | 295 mph | SSC-reported top-speed result in 2022; not a two-way average. SSC separately reports a 282.9-mph average in 2021 |
| Hennessey Venom GT | 270.49 mph (435.31 km/h) | Manufacturer-reported top speed in 2014 at Kennedy Space Center’s Shuttle Landing Facility |
| Hennessey Venom F5 | More than 270 mph in development testing | Hennessey describes 300-plus mph as a target; the cited material does not document a completed 300-mph run |
| Bugatti Veyron Super Sport | 431.072 km/h (about 267.856 mph) | Bugatti-reported 2010 production-car top speed |
Bugatti Chiron Super Sport 300+
Bugatti reported that a Chiron prototype derivative reached 304.773 mph (490.484 km/h) in 2019. The car had a revised long-tail body and was near-production, but the run was one-way. Bugatti later announced a limited Super Sport 300+ edition of 30 cars; that does not mean every customer car completed the record run.
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Koenigsegg Agera RS
Koenigsegg reports a 277.87-mph (446.97-km/h) average for a customer-owned, homologated Agera RS in two opposite-direction runs on a Nevada public road in 2017. It did not reach 300 mph, but its two-way format makes it a useful comparison with a one-way top-speed figure.
SSC Tuatara
SSC reports a 295-mph top speed for the Tuatara in 2022. Separately, the company reports a 282.9-mph average over 2.5 miles at Kennedy Space Center in 2021. Neither figure is above 300 mph, and the 295-mph result should not be described as a two-way average.
Hennessey Venom GT
Hennessey reports that the Venom GT reached 270.49 mph (435.31 km/h) at Kennedy Space Center’s Shuttle Landing Facility in 2014. That is a reported top speed below 300 mph; it should not be presented as a two-way record.
Hennessey Venom F5
Hennessey says the Venom F5 is intended to exceed 300 mph and reports development testing above 270 mph. In the cited material, 300-plus mph is a target, not a completed result.
Bugatti Veyron Super Sport
Bugatti reports a 2010 top speed of 431.072 km/h, approximately 267.856 mph, for the Veyron Super Sport. It is historical context for the modern top-speed contest, but it falls short of 300 mph.
Why the run format matters
A one-way test establishes that a vehicle reached a speed in that direction under those test conditions. A two-way average helps account for differences between opposite-direction runs. Vehicle status matters too: a prototype, a development car, and a customer-owned production car are not interchangeable categories.
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For readers comparing claims, check whether the number is a completed result or a target, whether it is a peak speed or an average, and what kind of vehicle made the run. The manufacturer pages cited here do not provide a common independent testing method for every car in the table.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.FAQ
Which car has gone over 300 mph?
Bugatti reported a 304.773-mph (490.484-km/h) one-way run in 2019 by a near-production Chiron prototype derivative at a German test track.
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Has a production car set a two-way 300-mph record?
The research in this dossier does not substantiate a completed two-way 300-mph production-car record. Bugatti’s reported crossing was a one-way run by a near-production prototype derivative.
What is the fastest two-way result listed here?
Koenigsegg reports a 277.87-mph (446.97-km/h) two-way average for a customer-owned Agera RS in 2017. It is below 300 mph.
Has the Hennessey Venom F5 reached 300 mph?
Not in the cited material. Hennessey describes 300-plus mph as a target and reports development testing above 270 mph.
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