Last weekend, hundreds of Overlanders converged for the annual Overland Expo East at the Biltmore Estate in Asheville, North Carolina. These DIY adventure-travel enthusiasts spend their time and money outfitting off-road trucks and SUVs with state-of-the-art adventure and survival goodies, including rooftop tents, on-board solar, and axes. Lots and lots of axes. For three days, the car owners participated in clinics like “Machete Use: Maintenance and Safety for Overlanders” and navigated a muddy off-road course. Meanwhile, we ogled their drool-worthy rigs—from retrofitted ambulances to burly Subaru Outbacks. Here are some of our favorites.