There's no getting around that 14.9 mpg figure we calculated while driving the Acadia, due in no small part to the vehicle's asphalt-bending curb weight. Skinny may be in on the fashion runways, but GMC obviously prefers fat on the highways. Another negative includes interior plastics that, while much improved, need to feature more soft-touch surfaces and fewer grain patterns. Finally, as comfortable and well designed as the Acadia may be, there's no denying that a minivan still trumps a crossover in terms of comfort, ease of entry, and overall practicality.