There are two engine choices for the 2017 Acadia. The basic versions have a 2.5-litre, 193-horsepower four-cylinder, while the better equipped versions feature a 3.6-litre, 310-horsepower V6. In both cases, the only available gearbox is a six-speed automatic. The new Acadia’s towing capacity (1814 kg or 4000 lbs.) is less than in the old one (2268 kg).