Still, if you look at interior dimensions for the two vehicles, you might wonder where those extra 16 inches went. Head, hip, and leg room in the Explorer's third row measure 39.0, 45.3, and 34.8 inches, respectively. The corresponding numbers for the TrailBlazer EXT are 38.5, 45.9, and 32.2. TrailBlazer is 2.6 inches wider than Explorer, which accounts for the additional hip room. But clearly, the Explorer's independent rear suspension, and resulting low floor, allowed Ford to pack more leg and head room into a significantly shorter wheelbase.

On the other hand, the long-wheelbase TrailBlazer does offer significantly better second-row leg and hip room than the Explorer, with 37.5 and 58.4 inches, respectively, versus the Ford's 35.9 and 54.2 inches. Even the standard-wheelbase TrailBlazer betters the Explorer in the second row, with 37.1 inches of leg room and 58.1 inches of hip room.

TrailBlazer seats come in two grades of fabric (LS and LT) or rich-feeling leather (LTZ). The adjustment is manual in LS and gains in trickery all the way up to eight-way power operation with memory (including outside mirror adjustment) and optional heating on the LTZ. Chevrolet says the front buckets are designed to accommodate heights ranging from 4 feet 10 inches to 6 feet 2 inches, but there is a noticeable lack of side bolstering. The front seats don't do justice to the TrailBlazer's ride, allowing the occupants to feel a side-to-side jouncing that doesn't exist in the similar GMC Envoy, which shares the same chassis and suspension but has better seats.

Interior lights abound, including reading lights. GM calls the interior lighting "world class." It was developed by the Rensselaer Polytechnic Institute Lighting Research Center in Indiana.

The instrumentation is complete and clean. A big tachometer is on the left, speedometer in center, and on the right are smaller gauges for water, battery, gas and oil. Brushed nickel is the basic trim, while wood comes with the leather interior. The four-spoke leather-wrapped steering wheel (standard on LTZ) has eight buttons, for climate, sound, cruise control and a driver information center in eight languages.

The console includes an open storage bin, an enclosed compartment and two cupholders forward of the gear lever (plus two more for the rear passengers). There are pockets in the front doors and behind the front seats, though none in the rear doors. Standard behind the rear seat is a small hidden compartment under the floor, while optional features include a cargo net, scrolling tonneau cover and power outlet.

The overhead console (standard on LTZ) includes a sunglasses holder, plus Travelnote digital recorder. Heating and air conditioning can be controlled separately by the driver, front and rear passengers.

Depending on trim level and options, the sound systems include radio/CD, radio/CD/cassette, six-disc in-dash CD, or six-speaker 275-watt Bose system. We found the Bose system offered outstanding sound quality and adjustment versatility. All the systems include RDS (Radio Data Systems) technology, allowing the listener to search for stations by type, display information including song and artist information, and provide traffic and weather updates. Rear seat controls and headphone jacks are standard with LTZ, optional with LT and unavailable with LS.

The OnStar communications system is standard with LT and LTZ, optional with LS. It includes GPS navigation, hands-free cellphone communication and a free first year of safety and security service (automatic crash and theft reporting, as well as remote unlocking if you lock yourself out). Mind-boggling possibilities include everything from having your email read to you by a computerized voice (Virtual Advisor) to getting directions to the nearest ATM.

Also available is a rear seat DVD entertainment system, with a seven-inch flip-down screen and wireless headphones.