Comment by nicholassmith

The World Endurance Championship has been using synthetic fuels since 2022 from TotalEnergies (https://competition.totalenergies.com/en/auto/endurance/wec/...), there's also Sustain (https://sustain-fuels.com/) in the UK as well who seem to be growing reasonably well but are a mix of sustainable & fossil fuels. There's some variability of how green they are, you still need to burn something so there's going to be emissions as well but they've been validated in the motorsport labs as being viable and they're starting to make their way to consumers.