The new GMC Sierra 2500HD, available at our National City store, is powerful and comfortable. Boasting a V8 engine with six-speed automatic transmission, this truck truly packs a punch. It has features like single-size manual air conditioning, Power door locks, and Manual Tilt-wheel. You can also give us a call at (888) 205-4442 to learn more details. Drop by our dealership for a test drive today.