http://VacavilleGMC.com 866-593-1568 The 2012 GMC Savana offers four different powertrains. The 1500 series features a 5.3-liter V8 with 310 horsepower and 334 pound-feet of torque, backed by a four-speed automatic transmission and standard rear-wheel drive. All-wheel drive is optional. EPA-estimated fuel economy with either drivetrain is 13 mpg city/17 mpg highway and 14 mpg combined. The rear-drive-only 2500 series gets a standard 4.8-liter V8 with 280 hp and 295 lb-ft of torque, or an optional 6.0-liter V8 generating 323 hp and 373 lb-ft of torque. Both engines are mated to a six-speed automatic transmission. Fuel economy with the 4.8-liter is 11/17/13, while the 6.0-liter is 11/16/13.