NEW GMC GRAPHYTE CONCEPT

GMC Graphyte concept
Engine: 5.3-liter V-8 mated to two electric motors
Horsepower: 300 hp
Width: 78.9 inches
Length: 187.7 inches.

What the automaker says: "The GMC Graphyte concept vehicle is a refined SUV with all the capability expected in a four-wheel-drive truck, but with 25 percent improved fuel economy enabled by GM's latest two-model full hybrid propulsion system." What you should know: The hybrid powertrain is similar to one that will be available on the Chevrolet Tahoe and GMC Yukon in 2007.Production possibility: Unknown