[Tru2Chevy]

Those old Hybrids don't do much.

A 14-kilowatt starter-generator permits the Silverado Hybrid to automatically stop and restart its gasoline engine at stoplights or for other temporary halts. The starter-generator also provides regenerative braking while the truck is coasting. Unlike other hybrid models on the market, the electric motor does not actually propel the vehicle. The 5.3-liter V-8 has the same output ratings as a conventional Silverado's V-8: 295 hp and 335 pounds-feet of torque.

Operation is subtle. Whenever the engine shuts itself off, which occurs when the truck slows to a halt, it's difficult to discern that anything unusual has happened. The gas engine restarts instantly as soon as you let up slightly on the brake.

According to EPA estimates, these pickups can achieve 17 - 18 mpg in city driving and 19 - 21 mpg on the highway, amounting to a 2-mpg improvement in city driving and a 0 to 1 mpg improvement on the highway. The system also serves as a mobile power-generating station. Four 120-volt power outlets are located under the rear seat and in the pickup bed.

- Justin