The Yukon XL is comfortable for long tows or major outings. It's a wonderful feeling to drive down the highway in one of these, sitting up high with all the comforts, including the optional Bose sound system.

Completely redesigned for the 2007 model year, the dashboard has been lowered by six inches, and the seats redesigned and raised, with a more convenient and secure seatbelt mounting on the B pillar. They are very comfortable, in leather.

We especially like the touch-screen radio/navigation system, much easier to operate than in so many cars, Mercedes, for example. We set the programs we liked, and could switch from favorite XM to AM to FM stations with one finger push; many vehicles require switching bands, then switching stations.

The switchgear is simple, and the instrumentation is clean. The console is huge (20.1 liters says GM, although we couldn't see 5.3 gallons being poured in there), with a deep storage box and a tray on top. The glovebox is 25 percent larger than the one in pre-2007 models. Two cupholders are provided in a removable tray forward of the console and they work very well. There's another cupholder in each door pocket. A slot in the dash just left of the turn signal is perfect for coins or toll-road tickets. The pedals are adjustable, to accommodate short wives and tall husbands or vice versa.

The rearview camera and monitor is quite useful, although it might take some new skills to fully use. One night we had to back up a narrow winding driveway squeezed by trees, and it could only be done by using the monitor. It was tricky. The backup lights did a great job of lighting the road for the camera; looking over our shoulder, our naked eye couldn't see the road nearly as well. Without this device, we would have been backing-up blind. It's also quite useful for spotting a child playing behind the truck after shifting into reverse or maybe a short, unseen pole. With a little practice, the camera makes parallel parking easier and quicker. It can also be used to help position the tow ball under a trailer hitch, reducing the number of times the driver has to jump out to check distance and alignment.

The Yukon XL can seat six, seven, eight or nine passengers, depending on the seats selected. Our SLT had the second-row bucket seats, with room for seven, in a two/two/three configuration.

The second row offers good legroom, at least with the two bucket seats: 39.4 inches, nearly as much as in the front. Second-row passengers have their own console, with an elbow tray and two cupholders each. They have their own audio controls too, and a front-row seat for the DVD screen that drops down from the headliner, and uses wireless headphones. The second-row bucket seats come with a console between them.

An optional power feature allows folding the second-row seats with the touch of a button on the instrument panel or C-pillar. It's slick: the seatbacks fold flat against the sitting part, and then the seats flip up against the back of the front seats.

The third row seats two or three, depending on the package. Split 60/40, the third-row seats fold and tumble, but don't fold flat into the floor like some competitors. The third-row seats flip up against the back of the second row. This fold-and-tumble feature sacrifices some quick cargo space because the seats don't fold flat, although there's still a lot compared to other SUVs. The third-row seats are also removable.

The third-row seats offer good head room and okay leg room (34.9 inches), and a great view through the wraparound glass, so it's not cramped or claustrophobic as it is in the GMC Envoy XL. But with the optional center seat, all you'll ever fit in the third row are three small kids. The kids on the end have their own cupholders. Their climate control vents are inconveniently located in the headliner over the necks of the second-row passengers, but they can be aimed rearward toward the third-row passengers' knees. The second-row passengers have their own vents in the headliner, over their laps.

Cargo space is where the Yukon XL excels. There's 137.4 cubic feet of storage behind the front seats, with the second row folded and third row removed. Even with all seats in place, there's still 45.8 cubic feet of cargo space behind the third row.

The lift-over height at the rear bumper is relatively high, so it's not easy to climb up into the cargo compartment to reach things, especially since there are no grab handles.