GMC ≫ AcadiaGMC Acadia AT4 (2020 facelift, second generation) photosby Joshua ThompsonThe 2020 GMC Acadia AT4 is a new offroad trim level with a standard 3.6L V6, AWD and 17″ wheels. The facelift also includes a bolder grille and headlamps. ◄ PrevNext ►Credit: GMC 2020 GMC Acadia AT4 Tags:acadiaat4faceliftgmcsecond generation