Nearly a decade after its original introduction, the second-generation GMC Acadia has arrived with a new platform. It is seven-inches shorter, and lighter, than the old model, and should be significantly more fuel efficient. This three-row SUV continues to offer front- or all-wheel drive. A new 2.5-liter four-cylinder engine is standard, while the mainstream engine is a 310-hp, 3.6-liter V6. Available in five-, six-, or seven-passenger seating configurations, the Acadia promises to be family-friendly. The outboard second-row seats can slide and tilt forward, even with a child seat in place. A bevy of safety features are available, including forward-collision warning with automatic braking, pedestrian detection, lane warning, and blind-spot monitoring.