Alpine's Alpenglow is a fully running hydrogen V6 prototype with blue brake lights and the only thing coming out of its exhaust is water - supercarblondie.com

Automated excerpt

The Alpine Alpenglow prototype hits a 9,000rpm redline to prove that a high-revving hydrogen V6 engine can actually keep the combustion era alive. Because the V6 engine runs hot like a normal car, the Alpine Alpenglow uses standard radiators that do not ruin the aerodynamics. This hydrogen V6 engine is a practical solution for fast cars that need to refuel quickly like a normal petrol car.

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