Last year at SEMA, we saw a fairly radical Chevy Colorado ZR2 concept from American Expedition Vehicles (AEV). The already capable pickup had been fitted with a ton of gear for serious off-roading ...

The AEV-designed, GM-manufactured Chevy Colorado ZR2 Bison Edition is a factory-orderable $5,750 option package that transforms the desert-runner ZR2 into more of a technical rock crawler.

American Expedition Vehicles (AEV), the Michigan-based company that has been modifying 4WD vehicles for hardcore off-road duty since 1997, will be introducing an all-new concept at SEMA next week.