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Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →A land speed record is not simply the fastest number shown by a vehicle on a straight road. An official result belongs to a governing authority, a vehicle category and class, a defined course and distance, and a timing procedure. For FIA automobile records on an open course, the key safeguard is normally a pair of runs in opposite directions whose elapsed times are averaged, limiting the influence of wind and directional conditions.
The FIA’s current record page identifies ThrustSSC, driven by Andy Green, as the outright world automobile land speed record holder: 763.035 mph (1,227.985 km/h) over one mile in October 1997, a result the FIA describes as the first supersonic record at Mach 1.016. That headline figure is only one record category, however. Class, authority and rulebook edition determine what any other “land speed record” means.
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What counts as an official land speed record?
The Fédération Internationale de l’Automobile (FIA) defines its world records as official speeds achieved by wheeled vehicles on land. It maintains many records across groups, categories and classes rather than one undifferentiated leaderboard. A record therefore needs its complete context before it can be compared with another result.
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FIA classifications can separate vehicles by factors such as engine type or capacity, weight and body shape. Two vehicles may both hold a “world record” while competing under different classifications and therefore not representing a direct performance comparison. A careful report should name the governing authority, category or class, course format and measured distance alongside the speed.
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Authority matters
The FIA archive covers automobile records recognized by the FIA. It explicitly excludes motorcycles. Motorcycle records are maintained by the Fédération Internationale de Motocyclisme (FIM), so an FIA automobile mark should never be described as the record for every vehicle type or every sanctioning body.
| Question | Why it changes the meaning of a result |
|---|---|
| Which authority recognized it? | FIA records cover automobiles; motorcycle records fall under FIM rather than the FIA automobile archive. |
| Which vehicle class? | Engine, capacity, weight, body shape and other classifications can create separate records. |
| What course and distance? | An open-course result and an acceleration result follow different conditions; a one-mile mark is not automatically comparable with another distance. |
| How was it started and timed? | The applicable rulebook determines whether the attempt uses a particular start format and how elapsed time becomes an official speed. |
Why do FIA attempts use opposite-direction runs?
On an open straight-line course, the FIA describes record attempts as runs in opposing directions that are averaged together. The practical reason is to reduce the effect of wind and other directional course conditions: a tailwind can help one way, while a headwind can hinder the return. Running both ways makes the result less dependent on which direction happened to be favorable.
The detailed 2025 rule
For open-course records up to 10 miles, excluding acceleration records, the FIA’s reviewed 2025 Appendix D states that record speed is calculated from the average of the times recorded on consecutive runs in opposite directions. The return run used for that average must be completed within a maximum of 60 minutes.
The rule averages elapsed times, not the two displayed speed readings. That distinction matters: time is measured over the defined distance in each direction, the two times are combined under the rule, and the resulting average performance is converted to the reported speed.
What the two-way requirement does not mean
It does not mean that every record in every category uses exactly the same format. The 10-mile limit and the 60-minute return provision described above apply to the specified open-course records and exclude acceleration records. A class, course type or separate sanctioning body may have different requirements, so the applicable rulebook must control.
How is a land speed record timed?
The detailed timing provisions summarized here come from the FIA’s 2025 Appendix D. They require an automatic timing system with accuracy to 1/1000 of a second. The timing equipment must also have a verification certificate issued less than two years before the attempt and still valid when the run takes place.
Automatic measurement to 1/1000 second
Manual stopwatch timing is not the standard described in the FIA provision. An automatic system measures when the vehicle crosses the relevant timing points and records the elapsed time to the required precision. At very high speed, even a small timing error changes the calculated result, which is why the regulation specifies a thousandth-of-a-second accuracy level.
Current equipment verification
The verification certificate is a separate requirement from the device’s nominal resolution. The equipment must be certified, the certificate must be less than two years old at the time of the attempt, and it must remain valid. An organizer should check those dates before the event rather than assume that a previously tested device is acceptable.
Non-volatile timing records
All timing events from the attempt must be logged in non-volatile storage for officials. “Non-volatile” means the recorded events persist when power is removed, rather than existing only in temporary memory. Retaining the full timing record gives officials an auditable trail for the start, finish and other events captured by the system.
Independent redundancy
The FIA recommends parallel, redundant and independent timing systems. Redundancy helps identify a malfunction or anomalous reading; independence reduces the chance that one shared failure will affect every measurement. The recommendation is about confidence in the official result, not permission to average arbitrary systems together. Officials still apply the rulebook’s prescribed calculation and review process.
What happens between a run and recognition?
Certification is the process of showing that the vehicle, course, timing and conduct of the attempt met the authority’s rules. The exact paperwork and officials depend on the governing body and record class, but the evidence chain follows a clear order.
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- Choose the authority and class. Decide whether the target is an FIA automobile record, an FIM motorcycle record or another organization’s mark. Identify the precise group, class, engine or body requirements before preparing the vehicle.
- Define the course and distance. Establish the measured straight-line course and determine whether the attempt is an open-course speed record, an acceleration record or another format. The distance and course type affect which provisions apply.
- Plan the required direction sequence. For the FIA open-course records described in the 2025 Appendix D, schedule consecutive runs in opposite directions and ensure the return run can be completed within 60 minutes.
- Install compliant timing. Use automatic equipment meeting the 1/1000-second accuracy requirement, with a verification certificate issued less than two years before the attempt and still valid on the day.
- Preserve the event data. Configure non-volatile logging for all timing events. Keep the parallel, redundant and independent systems recommended by the FIA available for cross-checking.
- Run the attempt under officials’ control. Officials supervise the sequence, confirm that the vehicle remains within the declared class and preserve the records needed to calculate the result.
- Apply the rulebook calculation. For the specified FIA open-course records, average the elapsed times from the opposite-direction runs, then convert that result to the reported speed.
- Submit the record for recognition. The governing authority reviews the attempt against its current regulations and archive criteria before treating the result as an official record.
This sequence explains the logic of certification without replacing the authority’s entry forms, inspection requirements or event-specific instructions. Anyone planning an attempt should obtain the current rulebook and confirm the documentation required for the selected class.
Why the rulebook edition and date matter
The FIA regulation index lists a 2026 Appendix D updated on 25 June 2026. The detailed timing and calculation points above were checked against the 2025 Appendix D text, not independently verified against the full 2026 document. The 2025 provisions are useful for understanding how the system works, but they should not be presented as guaranteed unchanged.
Organizers, competitors and journalists describing a current attempt should check the live 2026 Appendix D and any event instructions before relying on a clause number, timing specification or filing requirement. A rule can be revised while the underlying principle—measured, auditable performance under a defined class—remains the same.
What is the current outright automobile record?
The FIA currently identifies ThrustSSC and driver Andy Green as holding the outright world land speed record for automobiles. The result is 763.035 mph (1,227.985 km/h), achieved over one mile in October 1997. The FIA describes it as the first supersonic record and gives the speed as Mach 1.016.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11That statement is deliberately narrow. It is the FIA’s outright automobile record, not a claim that every FIA class record was surpassed, and not a motorcycle record. The date, one-mile distance, driver, vehicle and governing authority all belong in a precise description of the mark.
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Is the motorcycle land speed record the same as the car record?
No. The FIA’s land speed record archive is for FIA-recognized automobile records and excludes motorcycles. Motorcycle records are maintained by the FIM. A motorcycle result may also have its own classes, course requirements, direction rules and timing provisions. Comparing it with an FIA automobile result without naming the authority and class can create a false “overall” ranking.
| Comparison point | FIA automobile record | FIM motorcycle record |
|---|---|---|
| Governing body | Fédération Internationale de l’Automobile (FIA) | Fédération Internationale de Motocyclisme (FIM) |
| Archive scope | FIA-recognized automobile records | Motorcycle records maintained by FIM |
| Vehicle classification | Separate groups and classes, including factors such as engine, weight and body shape | Specific classification details are not established by the sources summarized here |
| Timing and direction rules | For the specified open-course records, the reviewed 2025 FIA rule uses consecutive opposite-direction runs and averaged elapsed times | Not stated here; consult the applicable FIM regulations |
How to read a record claim without being misled
Look for the authority
“World record” is incomplete unless the sanctioning body is named. FIA and FIM maintain different archives, and local or event organizations may recognize additional marks that are not FIA or FIM world records.
Check the class before the number
A spectacular speed in a restricted engine or body class can be entirely legitimate while not competing with an unlimited-class result. The class label is not a footnote; it defines the field in which the record was set.
Confirm the course format
Ask whether the result came from an open straight-line course, an acceleration run or another measured format. For the FIA open-course records covered by the 2025 provision, the opposite-direction average and 60-minute return limit are central conditions.
Separate a measured speed from a certified record
A radar display, onboard GPS figure or single high-speed pass may show performance, but certification requires compliant automatic timing, current equipment verification, preserved timing events and review under the governing rules.
Common mistakes and how to avoid them
- Calling one pass the official record. A single direction can benefit from wind. Check whether the category requires opposite-direction runs and an averaged result.
- Ignoring the return window. For the specified FIA open-course records up to 10 miles, the return run used in the average must be completed within 60 minutes.
- Using expired verification. A timing device can still function while its certificate is no longer valid. Confirm the issue date and validity period before the attempt.
- Relying on volatile logs. If timing events disappear when power is lost, officials may not have the retained evidence required by the rule.
- Mixing automobile and motorcycle records. FIA automobile archives do not include FIM motorcycle records.
- Quoting an old rule as current. The FIA lists a 2026 Appendix D update dated 25 June 2026; verify the current edition before giving operational advice.
What readers should remember
A certified land speed record is a controlled measurement, not merely a top-speed anecdote. The authority and class define what is being attempted; the course and distance define the measurement; opposite-direction runs help control directional conditions; automatic timing and current verification make the number defensible; and retained logs allow officials to audit the result. For FIA automobile attempts, those details must be read in the current Appendix D, while motorcycle attempts belong to the FIM system.
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