When the U.S. Army came knocking on GM's door saying it would like help building a that incorporated alternative powertrain technologies, our guess is GM said absolutely.
The advantages of hydrogen fuel systems notwithstanding, the tremendous complexities these systems involve means building the Chevrolet Colorado ZH2 prototype could not have been easy. But from the looks of this video, it didn't take much time at all. Here's a time-lapse video from GM to show you just how tricky putting a futuristic powertrain into an existing mid-size truck pickup can be.
Manufacturer images
