Hydraulic diesel hybrid coming to your city?

UPS, Eaton, International Truck and Engine and the US Army National Automotive Center are partnering to create "a full hydraulic hybrid urban delivery vehicle" this "is anticipated to achieve 90 per cent reduction in NOx emissions to meet the 2010 diesel emission standards, 60-70 per cent better fuel economy and fast payback for the cost of the technology".

The technology powering hybrid cars is just emerging, and hybrid technology seems destined to provide a nice bridge to fuel cells.