Built on GM's Lambda platform which also underpins the Buick Enclave, Saturn Outlook and, most recently, the Chevrolet Traverse, the GMC Acadia is a full-size crossover SUV that replaced the General's minivans, Safari van and Envoy XL SUV. And we hear more models will fall to the Lambdas.

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Three trim levels exist, and all are powered by a 3.6 liter V6 with Variable Valve Timing (VVT) turning either the front wheels only, or all four when the conditions call for it, exclusively through a six-speed automatic transmission. With the former, the EPA estimates the Acadia will return 16 miles to the gallon in the city, while 24 miles will be covered for every gallon of gasoline burned on the highway. The all-wheel-drive models return 16 / 22 mpg respective numbers. That engine is good for 275 horsepower at 6,600 rpm and 251 lb-ft at 3,200 rpm.

The SLE trim has standard features such as an AM/FM stereo with MP3-compatible CD player, deluxe cloth seating, 8-passenger seating includes second-row 60/40 split bench seating, double-dual exhaust with chrome tips, power windows with driver express-down, remote keyless entry, tire pressure monitoring system, StabiliTrak stability control system with traction control, 18-inch aluminum wheels and XM Radio with a 3-month trial subscription.

The next trim up the ladder, the SLT1, adds to or replaces the SLE's features with 7-passenger seating thanks to bucket seats in the second row, body-color, foldaway, power adjustable, heated outside rearview mirrors with integrated turn signals, bright belt-line molding, AM/FM stereo with MP3-compatible in-dash six-disc CD player and Bose premium 10-speaker system with subwoofer, driver information center, heated and power adjustable front seats, tri-zone automatic climate control and a universal home remote, as the major standard features.

The range-topping SLT2 trim throws in a cargo package (cargo shade and cargo net), a convenience package (remote start and Ultrasonic Rear Parking Assist), which are both options on the lesser two trims, driver and passenger express up and down power windows, 3-prong household- style, 115-volt power outlet, power rear liftgate, washer nozzles and heated windshield, as well as power adjustable and folding, heated outside rearview mirrors with integrated mirrors with driver's side auto-dimming and memory.

The Acadia offers various options and packages, such as a rear-seat entertainment system, 19-inch ultrabright aluminum wheels, heads-up display, the aforementioned Convenience package, touchscreen navigation radio and power liftgate, among less substantial ones. Heck, even heated windshield washer fluid can be requested.