2004 Buick Rainier

Powertrains reflect those used in other GM midsize SUVs. The standard 275-horsepower 4.2-liter inline six-cylinder engine delivers 275 pound-feet of torque. An optional all-aluminum 290-hp, 5.3-liter V-8, which is exclusive to the Rainier in GM's short-wheelbase midsize group, produces 325 pound-feet. Both engines drive a four-speed Hydra-Matic transmission. Towing capacity ranges from 5,600 to 6,700 pounds, depending on drivetrain. Acceleration with the V-8 engine is truly energetic and the automatic transmission responds rapidly, without awkwardness, at any speed. The Rainier moves out quickly from a standstill, too.


Buick claims best-in-class body stiffness, to help isolate occupants from road vibrations and noise. Rack-and-pinion steering is installed, along with vented, anti-locking all-disc brakes. Side-impact airbags for front occupants are optional. All seating positions have three-point safety belts.


Built on a 113-inch wheelbase, the Rainier measures 193.4 inches long overall and stands 71.9 inches tall. Minimum ground clearance is 7.7 inches, and step-in height is 18.2 inches. Michelin tires ride 17-inch aluminum wheels. Cargo space is 80.1 cubic feet with the rear seats folded down or 39.8 cubic feet with all seats up.


With its rear air suspension, the Rainier delivers a ride that's a bit more refined than some other GM midsize models, though not dramatically so. The Rainier copes very well with lumpy pavement, absorbing most of the roughness. Even so, you can expect to feel nearly all of the imperfections, at least a little.

Up to 80.1 cubic feet of cargo space is available.

Impressively stable on both two-lane roads and fast-moving expressways, a Rainier handles confidently, though not necessarily above the SUV norm. A Rainier is quieter on the road than its GM cousins, thanks to Buick's QuietTuning construction that includes acoustic laminate in the windshield and front door glass, as well as additional sealing at the C- and D-pillars, and increased sound absorption materials throughout.