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SEATTLE, Washington -- Black-smoke-spewing semis and buses are getting a hybrid makeover, thanks to rising fuel costs and growing environmental concerns. The annual Hybrid Truck Users Forum met last weekend to show off giant, fuel-efficient diesel-electric trucks and to discuss the road to large-scale production.

From military to mass transit to parcel services, the big rigs that make the world run smoothly may soon help it run cleanly. These heavy-duty trucks are green but mean: They could easily crush the typical consumer hybrid.



Source: http://www.wired.com/cars/futuretransport/multimedia/2007/09/gallery_hybrid_trucks2?slide=1&slideView=7