Totally redesigned for the 2017 model year, the midsize GMC Acadia's dimensions have been reduced, while its curb weight has dropped by more than 700 lbs. Yet it can still accommodate up to seven passengers on board. Aside from a 3.6-litre V6 that develops 310 horsepower, a new 2.5-litre, four-cylinder engine has been added as a base powertrain, producing 193 horsepower. A front-wheel drivetrain is standard, while AWD is optional.