Toyota runs hydrogen GR Yaris at Acropolis Rally — motorsport as a real-world test laboratory

Toyota runs hydrogen GR Yaris at Acropolis Rally — motorsport as a real-world test laboratory

Toyota Hellas brings the GR Yaris ICE H2 prototype to the EKO Acropolis Rally 2026, held in Greece from 25 to 28 June. The hydrogen combustion vehicle appears as a demonstration car alongside a fully electric Hilux, a RAV4 Plug-in Hybrid and a C-HR+. Toyota calls this its Multi-Path strategy: multiple zero- or low-emission routes running in parallel, with no single technology chosen as the sole solution.

What is the GR Yaris ICE H2?

The GR Yaris H2 uses the same 1.6-litre three-cylinder turbocharged engine (G16E-GTS) as the standard production GR Yaris, but with a modified fuel supply and injection system for hydrogen. This is not a fuel cell vehicle — hydrogen combusts directly in the cylinders, exactly as petrol does in a conventional engine. Toyota describes the result as near-zero tailpipe emissions, while retaining the responsiveness, sound and driving feel associated with an internal combustion engine.

Development of the technology began internally at Toyota in 2017. Since then, H2-ICE technology moved quickly through motorsport: from 2021 a hydrogen-powered Corolla Sport has competed in Japan's Super Taikyu series. In August 2022, the GR Yaris H2 made its European debut at Rally Belgium in Ypres — the first time Toyota tested a hydrogen combustion vehicle on public roads outside Japan. Behind the wheel was then-Toyota president Akio Toyoda, known by his driver name "Morizo", with four-time WRC champion Juha Kankkunen as co-driver.

In July 2025, Toyota went a step further with the Rally2 H2 Concept — a full rally-specification chassis based on the GR Yaris Rally2, also fitted with a hydrogen combustion engine — demonstrated at Rally Finland. At Acropolis 2026, the earlier GR Yaris H2 prototype runs as a demonstration vehicle. Greek Prime Minister Mitsotakis rode along as co-driver ahead of the event start, describing the experience as "absolutely impressive."

Why does Toyota run hydrogen in rally?

Rally motorsport is a deliberate development environment for Toyota: high mechanical stress, extreme thermal cycles, variable conditions and minimal support between stages. What survives a rally is robust enough for the road. Toyota uses the motorsport context to test the reliability and behaviour of the hydrogen system under pressure, well beyond laboratory conditions.

The approach mirrors what Gazoo Racing already did with the GR86, GR Yaris and GR Corolla: refine technology through competition and feed the lessons back into series production. Whether and when an H2-ICE drivetrain reaches a production vehicle remains unconfirmed. Toyota has made no concrete announcement on this.

Multi-Path: hydrogen alongside, not versus

Toyota's presence at the Acropolis with four distinct drivetrain technologies — hydrogen combustion, fully electric, plug-in hybrid — illustrates the philosophy the brand has maintained for years: no technology monopoly, but multiple low-emission routes running side by side. Hydrogen combustion engines play a role in that picture, not as a replacement for other solutions, but as a complementary option for applications where H2-ICE offers technical or practical advantages.

Sources

- Toyota Europe Newsroom: GR Yaris H2 Ypres 2022 (newsroom.toyota.eu)

- Toyota Gazoo Racing: Rally2 H2 Concept Finland 2025 (toyotagazooracing.com)

- Athens Times: Mitsotakis at Acropolis Rally 2026

- Mononews.gr: Toyota Hellas Multi-Path Acropolis 2026

- Wikipedia: Toyota GR Yaris (G16E-GTS technical specifications)