
HAMBURG, Germany -- Whenever the Hyundai Xcient fuel cell truck owned by Austrian logistics company Gebrueder Weiss pulls into a customer's loading yard, it grabs people's attention.
A large zero on the side, together with smaller text reading "zero emission green hydrogen" marks it as the world's first mass-produced fuel cell heavy-duty truck model -- basically an electric vehicle that gets its juice from a hydrogen cell instead of a battery.