UPS hydraulic hybrid truck making your next delivery?

The EPA and UPS will begin testing a hydraulic diesel hybrid truck this year. Early tests indicate that the "patented hydraulic hybrid diesel technology achieved a 60 to 70 percent improvement in fuel economy and more than a 40 percent reduction in carbon dioxide emissions, compared to a conventional UPS vehicle" (more). Wow, is all I can say if those numbers hold up in real world tests. If so, I guess you have to thank Toyota. If not for the Prius and Toyota's obstinate push into hybrid cars, technologies, such as hydraulic diesels, probably wouldn't have been taken seriously.