Like its stubbier Tahoe sibling, the 2007 Suburban is based on GM's all new full-size SUV architecture, promising a sharper, more precise driving feel, more power with segment-leading fuel economy, and a quieter interior.

The key difference from Tahoe is, of course, a matter of size. The Suburban is 356 mm (14 in.) longer in wheelbase and 508 mm (20 in.) longer overall. The third-row seat that's optional in Tahoe is standard in Suburban, and with 236 mm (9 in.) more kneeroom. As well, Suburban offers almost three times as much cargo volume behind the third-row seat.

The 320-hp, 5.3-litre V8 with gas-saving Active Fuel Management (cylinder de-activation) is standard on Suburban 1500s, as is a 310-hp 5.3 in the heavy-duty Suburban 2500. A 366-hp, 6.0-litre V8 (353 hp on 2500) is optional. Transmissions are 4-speed automatic across the board, even though most SUVs these days have 5-, 6- or even 7-speed automatics.

A properly equipped (4x2) Suburban 1500 is rated to tow up to 3,720 kg (8,200 lbs.); Suburban 2500 can tow up to 4,400 kg (9,700 lbs.)

The popular Z71 Off Road appearance package returns, with larger recovery hook openings, larger fog lamps, a unique grille, and 18-inch wheels.

A segment exclusive is the LTZ's standard Autoride variable-damping suspension. Power-release flip and fold second-row seats are optional.

Huge space, huge comfort, huge capability, huge

A do-anything vehicle, mostly for people who don't need it