Click above for a gallery of the Dodge Rampage concept

Upcoming CAFE regulations may sound the death knell that renders the mid-size pickup segment officially spent. Sales of the not-quite full-size trucks have been dwindling at an even faster pace than their larger brothers, and much of the blame can be attributed to the small price and efficiency improvements that the smaller trucks can offer, especially now that both Ford and General Motors offer specific fuel-saving versions of their full-sizers. Some believe that car-based unibody pickups will step in to pick up the slack, and if so, Chrysler wants to be at the forefront of the movement.

Back at the 2006 Chicago Auto Show, Dodge unveiled its Rampage concept featuring four-doors, a small pickup bed in back and a Hemi underhood. For a possible production model, we're expecting something along those lines, but replace the gas-guzzling V8 with a small turbocharged four-banger. General Motors could also enter the segment with a production version of its Denali XT. Toyota, too, has espressed an interest in the market with its A-BAT concept truck.

Related GalleryDodge Rampage concept

[Source: Detroit News]