GMC AT4 2026 New Automatic Gasoline Acadia 2026 Follow-up AT4 category New For sale Manual transmission Gasoline : Specifications Turbo engine, remote start, 360 camera, lane radar, blind spots, cruise control, 10-speed gearbox, 20-inch rims, full LED lights, central screen, speakers, smart entry for all doors, seat cooling, leather seats, panoramic sunroof