General Motors has finally dropped the curtain on the 2014 GMC Sierra. The new Silverado builds on Chevrolet's 95 years of truck heritage, while raising the bar for full-size pickups. Among the many updates for 2014 are a new trio of powerful, efficient EcoTec3 engines; a stronger, quieter, more comfortable cab; revised steering, suspension and brakes; ingenious solutions for managing cargo in the bed and true truck capability for towing and hauling. This trucks have undergone substantial revisions with updated versions of the company's 4.3-liter V6, 5.3-liter V8 and 6.2-liter V8 engines. Each engine features standard direct injection,