Five Ugliest Concept Trucks

The suddenly plural folks at PickupTrucks.com have singled out five concept trucks that made great strides in awfulness and, thankfully, never saw the light of day as production vehicles. Given how enthusiastic they are for concept trucks over there, you can be assured that these haulers, mainly from the 2000-01 "cheap gas, secure borders" period, are gleefully hideous. Though we actually like the Nissan XIX concept truck, which is basically a stretched, Camino'ed Sentra. What's your favorite "ugly" conceptual mother-trucker? [PickupTrucks.com]