Some of the changes can be seen, including the climate controls and a new family of radios, both of which are easier to use yet more powerful and more sophisticated than last year's. XM Satellite Radio is available, along with a new Panasonic DVD system for back-seat monkeys.

Other changes are harder to discern, but are more important. Dual-stage front airbags provide improved safety in an accident, while the availability of the StabiliTrak electronic stability control system lessens the chance of losing control. Adjustable pedals are available for an improved driving position. And an all-new electrical architecture promises improved reliability.

In spite of all these changes, the Suburban's mission has not wavered. It remains the first choice for anyone who needs to haul six or more people plus their cargo. Chevrolet Suburban offers a cavernous interior with seats that fold down for monster cargo loads. It's based on an excellent full-size truck frame and its V8 engines deliver strong torque for towing heavy loads. The Suburban provides a stable, comfortable ride for long-distance travel. And it's capable of going off road.

Suburban 2500-series models can be ordered with Quadrasteer electronic four-wheel steering for dramatically increased maneuverability in tight spaces and improved control when towing a trailer.