Watch as Toyota breathes life into “Project Portal,” its top-secret hydrogen fuel cell heavy-duty truck. It was built at a research facility in Michigan and then started testing at the automaker’s test track near Phoenix. Toyota opened its doors to Trucks.com to capture time-lapse footage of “Project Portal” as the emissions-free Class 8 truck moved from drawing board to working prototype.

Read More: Secret ‘Project Portal’ Toyota Venture Launches Hydrogen Fuel Cell Heavy-Duty Truck

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