2005 GMC Sierra Hybrid Truck Test Drive and Review

The 2005 GMC Sierra Hybrid is really just a regular old Sierra 1500 pick up, but with integrated starter and generator (ISG) and regenerative braking. With the ISG, the engine shuts off at stoplights and instantly starts when you step on the gas. The regenerative braking means you never have to plug it in. This vehicle was a valuable learning tool for GM; it learned it must go deep into hybrid technology or go home. MSRP: est $32,000; Warranty: 3/36,000.