GMC Sierra Grande concept takes AEV factory build to next level

GMC and American Expedition Vehicles (AEV) have taken the newly launched Sierra HD AT4X to the next level of off-road capability with a new concept build. Debuting at the 2023 SEMA show, the Sierra Grande concept adds even more overlanding hardware to the Sierra HD AT4X, which launched for the 2024 model year as the top off-road edition of GMC’s…