Inside this one owner GMC extended cab you will find purposefully designed details derived from Professional Grade engineering. From its driver-oriented instrumentation with a driver information center to infotainment features like Bluetooth Onsatar and XM radio Sierra puts you comfortably in command. Sierras bold lines signature stance and premium fit and finish show the attention to detail that goes into every Sierra. Sierras Vortc 5.3 V8 with active fuel management and 6 speed automatic transmission enhance performance to deliver maximum torque smoothness and efficiency