http://VacavilleGMC.com 866-593-1568 The 2012 Buick Enclave is offered with either front-wheel drive or all-wheel drive. Either way, it's powered by a 3.6-liter V6 that pumps out 288 horsepower and 270 pound-feet of torque. A six-speed automatic transmission is standard. With the optional trailering package, the 2012 Buick Enclave can tow up to 4,500 pounds. EPA fuel economy estimates stand at 17 mpg city/24 mpg highway and 19 mpg combined for front-wheel-drive models, while all-wheel-drive versions rate 16/22/18.