Toyota builds a hydrogen-fuelled GR Yaris

To demonstrate how traditional internal combustion engines could use hydrogen instead of petrol, Toyota has created the GR Yaris H2 concept.

This one-off car features the same 1.6-litre, three-cylinder, turbocharged unit that powers the regular GR Yaris, albeit with modified fuel-supply and injection systems. Its hydrogen tank and associated ancillaries are taken from the current Mirai fuel cell electric vehicle.

Hydrogen is supposed to offer good responsiveness (due to a fast burn rate) and reduced emissions. However, objectively assessing the GR Yaris H2 is pretty much impossible, because Toyota hasn’t released any output, performance or efficiency data.

Furthermore, the company’s experimental hydrogen-combustion technology isn’t ready to go into production yet, but development work is ongoing. Any future market launches are likely to depend on whether or not an adequate hydrogen infrastructure is in place.

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