2005 GMC Graphyte Concept
"Guilt-free" - the type of performance the Graphyte sport utility concept promises, according to Tom Stephens, group vice president of GM Powertrain. It's very hard to believe that GMC's first concept vehicle of the year, as big, bold and tough-looking as a monster truck, could be environmentally friendly and a miser at the pumps, but as the saying goes, looks can deceive.
