CARSON, Calif. — Is this thing running?
The fuel cell powertrain in the Hyzon Motors Class 8 Freightliner 2022 Cascadia-based demonstration truck is so quiet that a windows-down ride on Interstate 405 in Southern California allowed shouting-free conversation.
Oh, and the truck emits no pollution, tailpipe or otherwise. Post-drive water vapor under the parked truck doesn’t count. It could be consumed, but it would taste icky.