Last Year Silverado unveiled a hybrid version and it’s still included in this years all star line up. Some of the Chevy Silverado Configurations available for 2005 are the; choices for bodies are the Regular, Extended or Crew Cab bodies. A gas-electric hybrid model was introduced in 2004 and remains in the lineup for 2005.. There's a Silverado to suit just about everyone who wants a full size pickup truck. Versatility is one of the Chevy Silverado’s strongest point. A Hybrid Silverado’s offer up to 10-percent better fuel economy; it has a 120-volt electrical power with ground fault detection and accessory powering capabilities with power outlets under the rear seat of the cab and in the pickup bed. Available are 1500 half-ton or 2500 three-quarter-ton models in 2WD or 4WD systems. Don't expect to see a hybrid Silverado at most Chevy dealerships. The Silverado pickup truck remains Chevy's best selling vehicle, probably in part because it's available in so many configurations. The trucks are available in limited quantities and are only being sold in six states; this includes California, Oregon, Washington, Alaska, Nevada and Florida. This can come in Fleetside or Sportside box styles.5 foot or extended 8-foot boxes.