GMC Graphyte Concept
One Step Ahead but Two Steps Behind
GM Hybrid System
Mid-term, however, the company is focused on its two-mode full hybrid powertrain, developed in conjunction with DaimlerChrysler, which has already been applied to passenger buses in several U.S. cities and is trickling down to consumer vehicles within the next few years.
To showcase the application of this two-mode full hybrid system in mainstream vehicles, GM has installed it in the GMC Graphyte Concept, an all-wheel-drive SUV which benefits from a 25-percent increase in fuel economy with no loss of power and performance over a regular mid-size SUV.