The 2007 GMC Acadia comes in three trim levels, starting with the SLE followed by the SLT1 and SLT2. Each is available in front-wheel drive or all-wheel drive.Standard equipment on the SLE includes air conditioning; cruise control; tilt and telescope steering wheel; heated, outside mirrors; power windows and door locks; OnStar; four-way, manual adjustable driver's seat; AM/FM/compact disc player; auto-on headlamps; daytime running lights; rear window wiper and seven-passenger seating.
Options include eight-passenger seating ($495); rear-seat entertainment/DVD player; convenience package with remote start and ultrasonic rear parking assist ($435); two-panel Skyscape sunroof ($1,300); head-up display ($350); 19-inch aluminum wheels ($695); power liftgate ($350).
Safety features include air curtains, seat-mounted side-impact airbags for driver and front-seat passenger, OnStar, anti-lock brakes, and StabiliTrak electronic stability control. All-wheel drive is available for more secure grip in foul weather.
Air curtains are low-pressure air bags that come down from the ceiling and cover the side windows (of all three rows) to provide head protection in a side-impact crash or rollover; in a rollover the air curtains could help keep arms and heads inside the vehicle in addition to providing head protection. However, air curtains are not a substitute for seat belts. Studies by the Insurance Institute for Highway Safety, which is funded by the insurance industry, have shown such head protection greatly improves the chance of surviving a side-impact crash. The front-seat side-impact airbags provide chest protection in a side-impact crash. Institute studies have also shown these "torso bags" are valuable, but not as valuable as head protection.