The annual Ultimate Overland Vehicle builds gives the Overland Expo Foundation the opportunity to showcase a new vehicle that is capable of round-the-world travel or simply getting out more on the weekends. The Foundation collaborates with a build partner to put it all together and the finished vehicle travels to events around the country. After the event season is over, the vehicle will be auctioned off on Bring a Trailer with 100% of the proceeds benefiting the Overland Expo Foundation. 

For 2026, the Ultimate Overland Vehicle Build is a 2026 Nissan Frontier PRO-4X. Powered by a proven 310-horsepower 3.8-liter V6 paired with a 9-speed automatic transmission, the 2026 Nissan Frontier PRO-4X is built for adventure both on and off the pavement. The PRO-4X trim adds serious trail-ready capability with an electronic locking rear differential and selectable terrain modes for sand, rock, mud, and snow. Inside, drivers are treated to premium comfort and technology including heated front seats, a heated steering wheel, wireless Apple CarPlay and Android Auto, and an available 12.3-inch touchscreen. With up to 7,150 pounds of towing capacity and rugged styling throughout, the Frontier PRO-4X strikes a balance between everyday practicality and backcountry capability.