The all-new GMC Sierra 1500 is built with more high-strength steel than ever and is the only pickup to receive a 5-Star Overall Vehicle Score for safety since the NHTSA revised their rating criteria with the 2011 model year. It's a fortress of strength that contributes to the Sierra's quiet cabin. The GMC Sierra is clearly a respected leader in the truck market by example. The powerful presence of the new Sierra is built on a foundation of Professional Grade engineering, delivering a refined ride and the capability and strength that you expect.Sierra's available EcoTec3 5.3L V8 engine offers the best V8 fuel economy in any full-size pickup at an EPA-estimated 16 MPG city/23 highway (2WD). The 4.3L V6 is rated at 285 HP and 305 lb-ft of torque, and has an EPA-estimated MPG 18 city/24 highway (2WD). The 6.2L V8 is the most powerful engine in a LD pickup at 420 HP and 460-lb of torque, the maximum trailer weight rating of up to 12,000 lbs4 is the most offered in a light duty pickup when combined with the available max towing package. Sierra's all-new EcoTec3 engines are paired with a 6-speed automatic transmission and are based on 50 years of proven small-block performance. Direct Injection, Active Fuel Management and Variable Valve Timing technologies make each of those engines more powerful and more efficient than ever.To keep going even when the pavement ends, the available All-Terrain Package includes the Z71 Off-Road Suspension, Hill Descent Control, a high-capacity air cleaner, underbody transfer case shield protection and Rancho Tenneco shocks. Further enhancing its unique appearance are a body-colored grille and bumpers, 18 chrome aluminum wheels and a carbon-fiber-inspired interior on SLT models.Take one look inside the GMC Sierra and you'll see clearly why this is the new standard in truck interiors. Sierra's interior brings comfort, refinement and convenience to a whole new level.