Any truck is a big investment, but in the GMC Sierra HD AT4X AEV's case, the investment isn't the only thing that's big. At ...

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.

We get a taste of the off-road ability afforded to a couple of Ram pickups by aftermarket specialists AEV. Honestly, the trails that rise above Southern California's Rowher Flats aren't much of a ...