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The Sierra and similar Chevrolet Silverado have relatively responsive handling and a spacious, quiet cabin. Benefits include easy cabin access, intuitive controls, and generous towing and payload capacities. Fuel economy with the 5.3-liter V8 crew cab we tested was 16 mpg overall, but the truck feels a bit sluggish in everyday driving. Other engines are a 4.3-liter V6 and powerful 6.2-liter V8. Its few shortcomings include a jittery ride, and front seats that aren't as supportive as those in some competitors. For 2016 more versions get the eight-speed automatic, lane-keeping assist is offered, and Apple CarPlay and Android Auto are available. Reliability has been below average.