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Toyota’s #32 TGRR GR Corolla H2 concept completed 483 laps at the June 2026 Fuji 24 Hours, but its new superconducting liquid-hydrogen pump did not run uninterrupted for the full race. The team spent about four hours replacing the tank assembly after the pump’s gears fell short of the durability needed for a 24-hour event. It was a significant first race deployment—not proof that the pump is ready for endurance racing without major reliability work.
Did Toyota’s hydrogen GR Corolla finish the Fuji 24 Hours?
Yes. Toyota Times reported that the #32 TGRR GR Corolla H2 concept completed 483 laps, a team record at Fuji, during the June 2026 ENEOS Super Taikyu Series event. Toyota had announced before the race that the car would be the first race car equipped with a superconducting liquid-hydrogen pump. Toyota’s pre-race announcement and Toyota Times’ post-race report describe the debut and outcome.
The result needs an important qualification: the car completed the event, but the pump did not demonstrate 24 hours of continuous, intervention-free operation. The team changed the tank assembly during the race, taking about four hours.
What the superconducting pump does
The pump moves liquid hydrogen from the car’s tank toward its engine. In Toyota’s 2026 design, a superconducting motor replaced the conventional electric motor and was placed inside the tank, where it could use liquid hydrogen’s extremely low temperature. The packaging change freed space and increased the tank’s announced capacity from 220 liters in late 2025 to a maximum of 300 liters, according to Toyota Motor Corporation.
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Toyota also expected the lower placement of a heavy component to help lower the car’s center of gravity. But a larger tank is not the same thing as greater usable range: Toyota’s post-race account said increased boil-off meant the capacity gain did not translate into a practical range increase.
Why the pump needed a tank change
Toyota’s post-race technical account identified the rotating gears and crank in the superconducting pump as insufficiently durable for the demands of a 24-hour race. Because the motor and pump were integrated inside the tank, the team replaced the tank assembly rather than simply swapping the heavily loaded components. The repair cost about four hours of the event.
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The integration therefore brought a trade-off: it created room for more hydrogen, but made service more involved when the pump needed attention. Toyota also identified boil-off—the loss of fuel as liquid hydrogen warms and vaporizes—as a separate problem aggravated by the larger tank and the movement of fuel within it.
Tank capacity, theoretical laps and actual range are different
Toyota project manager Naoaki Ito said the new tank could carry enough hydrogen for 40 laps, compared with a previous maximum of 30 for the liquid-hydrogen Corolla. That is a capacity-based estimate, not evidence the car achieved 40 laps per fill in race conditions. Toyota specifically cautioned that this figure did not directly equate to matching a gasoline car’s range.
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The distinction matters because the system’s measured or intended capacity, estimated laps per fill, and realized range answer different questions. In Toyota’s July 2026 account, the tank was larger, but increased boil-off prevented the extra capacity from producing a corresponding range gain.
How Toyota’s hydrogen race-car development got here
Toyota began racing its hydrogen-engine Corolla in Super Taikyu with gaseous hydrogen in 2021, then moved to liquid hydrogen from 2023. The liquid-fuel system has required successive changes to storage, pumping and service procedures.
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| Development stage | Storage and configuration | Capacity and range figures | Race durability noted by Toyota |
|---|---|---|---|
| 2022 | Compressed gaseous hydrogen at 70 MPa | 180 L tank; 7.3 kg; about 12 laps and 54 km at Fuji | Not stated in Toyota’s 2024 comparison. |
| 2023 | Liquid hydrogen | 150 L tank; 10 kg; about 20 laps and 90 km at Fuji | Toyota said the pump was replaced twice during the 2023 Fuji 24 Hours. |
| 2024 target configuration | Liquid hydrogen with a dual-drive crank mechanism | 220 L tank; 15 kg; about 30 laps and 135 km at Fuji. Toyota labeled these figures as targets. | The stated objective was for one pump to last at least 24 hours. |
| 2025 | Liquid hydrogen | Not stated in Toyota’s 2025 account. | Toyota said the car finished the May Fuji 24 Hours without replacing the pump, though continuous operation at maximum output remained a challenge. |
| 2026 | Liquid hydrogen with an in-tank superconducting motor | Capacity increased from 220 L to a maximum 300 L; Toyota’s post-race account described a 30%-or-more increase and a capacity estimate of enough hydrogen for 40 laps. | The tank assembly was changed during the race, taking about four hours; uninterrupted 24-hour pump durability was not demonstrated. |
The historical figures in Toyota’s 2024 comparison are approximate Fuji figures; its 2024 numbers are targets, not a claim of achieved race range. For the underlying comparisons, see Toyota’s 2024 technical release and Toyota Times’ 2026 account.
The 2023 Suzuka withdrawal was a separate problem
Toyota’s first scheduled liquid-hydrogen Corolla appearance at Suzuka in 2023 was abandoned after a test fire caused by a leak from a gaseous-hydrogen pipe in the engine compartment. Toyota said it moved the pipe away from hot areas and added safety covers to pipe joints before the Fuji event. That earlier incident involved a pipe leak, not the 2026 superconducting pump’s gear durability.
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What Toyota plans to change next
As of Toyota Times’ July 2026 report, Toyota’s proposed next direction was a linear-drive superconducting motor designed to eliminate the gear and crank components that contributed to durability problems. Toyota presented this as development work, not a fix already proven in competition.
The broader challenge is that superconducting components are generally used in stable, low-vibration environments, while a race car exposes the pump to vibration and heavy loads. Kyoto University professor and development collaborator Taketsune Nakamura described the challenge this way: “The idea of using a superconducting pump in a race car almost defies logic.”
What the race does—and does not—show
The Fuji event shows that Toyota brought an in-tank superconducting liquid-hydrogen pump into competition and that the GR Corolla completed the race after a substantial repair. It also exposed unresolved issues in pump durability, serviceability and boil-off. Toyota frames racing as a route for developing technologies that could eventually inform production vehicles, but the sources do not establish production timing or that this pump or race car is available to consumers.
Keep this car distinct from Toyota’s GR LH2 Racing Concept, unveiled at Le Mans in 2025 as a separate liquid-hydrogen test car based on the GR010 HYBRID Hypercar. It is not the #32 Super Taikyu GR Corolla and should not be confused with the car that carried the 2026 pump.
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