ROAD TEST: GMC SIERRA HYBRID

I came to a stop at the light and watched the tachometer drop to zero as my GMC Sierra stalled. Yikes. I'm in thick traffic. Now what? Then I remembered, I'm in a hybrid and that's what hybrids do. Though this Sierra acts and looks just like its gasoline-powered cousin, like all hybrids it shuts down at standstills to save on fuel and prevent noxious emissions. Yet unlike smaller hybrid vehicles, this full-size pickup always seemed to need the gas-powered engine to move. As a result, its fuel-efficiency numbers aren't astounding: 17mpg city versus the gas version's 15mpg. And both engines get 19mpg on the highway. But the hybrid version burns slightly cleaner, cutting the truck's CO2 emissions by 10 percent.

Everything else about this truck is like it is on the gas-powered model. And this one sports an extended cab and four-wheel drive. For now the Sierra hybrid is available in just six states, but GM plans to expand distribution based on demand.

Tip: Four onboard 120-volt electrical outlets are ideal for powering tools at the job site and appliances at the campsite--or during a blackout.

ROAD TEST: GMC SIERRA HYBRID | News