2500HD 2010 Automatic Gasoline mileage: 250 KM 4WD Wanted, wanted! Looking for a GMC Sierra from 2010-2013 HD. Restoration project. Body condition is not important. Most important: engine and chassis must be in good condition. Most important: engine and chassis must be in good condition. Most important: engine and chassis must be in good condition. Mileage not exceeding 310,000.