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Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →The Gordon Murray Automotive T.50 has the highest redline confirmed in the available specifications for this roundup: its maker lists the 3.9-litre Cosworth V12 at 12,100 rpm. Aston Martin lists the Valkyrie’s naturally aspirated 6.5-litre V12 at a maximum engine speed of 11,100 rpm. Those are manufacturer-published figures, not independent test results. A redline is an engine-speed limit—not a measure of power, acceleration or durability—and it is distinct from the rpm at which an engine makes peak power.
What the redline figures do—and do not—tell you
Redline or rev limit describes the upper engine speed specified for operation. It should not be confused with peak-power rpm: the Valkyrie, for example, is listed by Aston Martin at 1,000 bhp at 10,500 rpm, despite a maximum engine speed of 11,100 rpm. Nor does a higher limit, by itself, prove that an engine makes more power or will last longer.
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The figures below come from a mix of manufacturer specifications and a secondary roundup. Where the source material establishes a figure only through that roundup, it is identified as such. The comparison is about the stated limits, not a ranking based on independent testing.
Eight rare engines with high stated rev limits
Jalopnik’s October 10, 2026 roundup supplies the complete eight-engine roster. Its extracted reporting identifies the Honda S500, Ferrari Daytona SP3, Lexus LFA, Mercedes-AMG One, Aston Martin Valkyrie, Gordon Murray Automotive T.50 and Caparo T1. The supplied material does not establish the eighth entry or provide confirmed specifications for every named vehicle, so only figures established in the available sources are given below rather than filling gaps from memory.
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| Engine / vehicle | Stated limit | Engine details and peak power | Evidence |
|---|---|---|---|
| Gordon Murray Automotive T.50 | 12,100 rpm redline | 3.9-litre naturally aspirated Cosworth GMA V12; 670 PS at 11,000 rpm | Manufacturer launch specification, page checked 2026 |
| Aston Martin Valkyrie | 11,100 rpm maximum engine speed | 6.5-litre naturally aspirated Cosworth-developed V12; 1,000 bhp at 10,500 rpm from the internal-combustion engine | Aston Martin, December 12, 2018 |
| Honda S500 | 9,500 rpm redline, as reported | Other engine specifications and peak-power rpm: not stated in the available material | Jalopnik, October 10, 2026; secondary-source figure |
| Ferrari Daytona SP3 | Not stated in the available material | Not stated in the available material | Named in Jalopnik’s roundup; no figure established here |
| Lexus LFA | Not stated in the available material | Not stated in the available material | Named in Jalopnik’s roundup; no figure established here |
| Mercedes-AMG One | Not stated in the available material | Not stated in the available material | Named in Jalopnik’s roundup; no figure established here |
| Caparo T1 | Not stated in the available material | Not stated in the available material | Named in Jalopnik’s roundup; no figure established here |
| Eighth entry in Jalopnik’s roundup | Not stated in the available material | Not stated in the available material | The extracted text does not identify it |
Gordon Murray Automotive T.50: 12,100 rpm
Gordon Murray Automotive specifies a 12,100 rpm redline for the T.50’s 3.9-litre Cosworth V12, with 670 PS at 11,000 rpm. The manufacturer’s launch page presents these as specifications; they are not an independent measurement. The engine is naturally aspirated, a configuration central to the design brief. Professor Gordon Murray said: “To be truly remarkable, an engine needs to have the right characteristics: highly responsive, an amazing sound, engaging torque delivery, free-revving, and it has to be naturally aspirated. For all those reasons, the engine in the T.50 was never going to be anything other than a V12.”
Aston Martin Valkyrie: 11,100 rpm
Aston Martin’s December 2018 release gives the Cosworth-developed, naturally aspirated 6.5-litre V12 a maximum engine speed of 11,100 rpm and peak output of 1,000 bhp at 10,500 rpm. Those power and speed figures are for the internal-combustion engine; they should not be mistaken for combined hybrid-system output.
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Honda S500: 9,500 rpm, according to a secondary source
Jalopnik reports a 9,500 rpm redline for the Honda S500 and says 1,363 were produced. Those figures are secondary-source claims; an official Honda history confirmation for the exact numbers is not established in the available material. The production count is useful context for rarity, but does not change the status of the redline figure.
Other vehicles named in the roundup
The Ferrari Daytona SP3, Lexus LFA, Mercedes-AMG One and Caparo T1 are also identified in Jalopnik’s roster. The available source material does not establish their redlines or supporting engine specifications, so assigning exact figures to them here would overstate what is verified.
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How these figures compare with other high-revving engines
Two official examples outside the established roundup roster help show how engine architecture varies among high-revving designs; they are context, not additional entries in Jalopnik’s eight.
- Bugatti Tourbillon: Cosworth’s June 21, 2024 release describes a naturally aspirated 8.35-litre V16 capable of 9,000 rpm. It is part of a hybrid powertrain. The release also gives the engine’s weight as 252 kg.
- Koenigsegg Jesko: Koenigsegg lists an 8,500 rpm rev limit for its twin-turbo V8. The same official page distinguishes 1,280 hp on regular gasoline from 1,600 hp on E85; those fuel-dependent power figures are not rev-limit figures.
These examples underline why configuration and aspiration belong in the comparison. A high limit is possible in naturally aspirated V12 and V16 designs as well as a turbocharged V8; the number alone does not explain how an engine delivers its power.
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Sources and scope
- Jalopnik, “8 Rare Engines With Super High Redlines,” October 10, 2026 — source for the roundup roster and the reported Honda S500 figures.
- Gordon Murray Automotive, “T.50 – Rewriting the supercar rulebook” — T.50 specifications and Gordon Murray quotation.
- Aston Martin, “Aston Martin Valkyrie V12 turns the hypercar engine up to 11,100,” December 12, 2018 — Valkyrie engine figures.
- Cosworth, “Cosworth’s most powerful naturally aspirated hypercar engine unleashed,” June 21, 2024 — Tourbillon V16 context.
- Koenigsegg, “Engines” — Jesko rev limit and fuel-specific power figures; page checked October 11, 2026.
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