2010 GMC Granite Concept
2010 GMC Granite Concept – Front Angle View The GMC Granite Concept is powered by a 1.4-liter turbocharged 4 cylinder that produces 138 horsepower and 148 pound-feet of torque. In a concept, a engine is interconnected adult with a six-speed involuntary transmission. The GMC Granite Concept rides on vast 20-inch wheels. In a box of ...