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Full Test: 2008 Subaru Tribeca

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  • 2008 Subaru Tribeca Picture

    2008 Subaru Tribeca Picture

    Tribeca's all-wheel drive varies torque split according to traction, but the proportion is usually 45 percent front/55 percent rear. | September 15, 2009

Road Test

Full Test: 2008 Subaru Tribeca

New Duds and More Suds

    0 Ratings
    You might accuse Subaru of having an identity crisis. Though it's built by a company that long ago established a tough-as-nails reputation among the inhabitants of wintry climes, the 2008 Subaru Tribeca dares to be stylish. It's kind of like wearing a tuxedo, only keeping your snow boots on.

    Subaru went for a lot of style in the original 2006 B9 Tribeca. Mention "B9 Tribeca" to a friend and the reaction you'll receive is one of either delicious enthusiasm or a scowl, as though you just popped a lime in his mouth. Styling is, as always, a matter of taste.

    Now devoid of the "B9" designation, the 2008 Subaru Tribeca has also shed its controversial skin, and it seeks more mainstream harmony between its upmarket appearance and practical family-rated nature. We'll see if it makes anyone look as if they've eaten a lime.

    Doing a 180 on the Outside
    Just when you thought you were accustomed to the B9 Tribeca's unusual, surprised-bidet face and creature-from-the-depths rear, Subaru has up and revamped the styling to a near-unrecognizable degree. The carmaker is taking no chances with this face-lift — all the adventurous yet awkward styling elements are gone, replaced with a blandness that will offend nobody.

    A much larger grille and deeper front airdam give the front of the new Tribeca a more substantial presence, although the price is a reduction in this sport-utility's useful approach angle to obstacles from 18.0 degrees to 16.7 degrees. The rear taillights are larger units that, together with the relocated license plate, lend a more harmonious look to the back of the Tribeca. Functional improvements for the 2008 Tribeca exterior include usefully larger sideview mirrors and a reshaped D-pillar for improved rearward visibility.

    To our eyes, the Tribeca's new nose bears a striking resemblance to a Chrysler Pacifica, and the anonymous rear smacks of...well, take your pick. Still, the new look is cleanly executed and the balanced proportions will no doubt curry favor with those who were turned off by the ambition of the original Tribeca's styling. Styling mission accomplished, no doubt.

    Staying the Course on the Inside
    The B9 Tribeca's interior was widely admired for its blend of Subaru practicality with a handsome, restrained sense of style. The new Tribeca's interior appointments remain stylish and largely functional, save for a center stack that curves away from the driver and a few ancillary gauges that are blocked by the driver's hands. Subaru didn't mess with success here.

    Access to the third row has been improved by the addition of a tilt-and-slide feature on the driver-side second-row seat to complement the one on the other side, and there's a stronger helper spring to make the process of getting back there easier. Once you're in, the third row is no roomier than before, so it's strictly for kids. Meanwhile, those of larger dimensions can find a home in the second-row seats, which feature 8 inches of fore-and-aft travel and also recline. A rear-seat air-conditioning blower is also part of the three-row, seven-passenger model.

    Subaru has gone to some lengths to make the Tribeca a right-size vehicle, so it lets you make a choice about the kind of interior function you want and offers some financial incentive for doing so. Tribeca prices, including destination, range from a low of $30,640 for the base-model five-passenger version to a high of $38,440 for an option-loaded seven-passenger Tribeca like our test vehicle. Skip the third row and you'll save a thousand bucks.

    We Asked for 30, but We Got 11
    When we first heard that the 2008 Tribeca would be sporting a 20 percent increase in engine displacement, we were pleased that Subaru had apparently heard our pleas for more power in the Tribeca. It turns out the increase of 11 hp from the new 3.6-liter flat-6 isn't quite the 30 hp we asked for, but the comprehensive package of improvements makes a purposeful difference. For example, the new engine runs on regular 87-octane fuel, whereas the outgoing 3.0-liter required premium fuel. And since torque has increased by 32 pound-feet, there's more grunt in the portion of the power band where the 4,294-pound Tribeca needs it most.

    Subaru engineers packed 3,630cc of displacement into the same-size box by means of a 2.8mm (0.11-inch) increase in bore and a whopping 11mm (0.43-inch) additional stroke. To compensate, the cylinder liners have been thinned from 2mm to 1.5mm and the redline drops by 400 rpm to 6,400 rpm. To maintain the same deck height as the outgoing engine, a shorter connecting rod is employed.

    A new parallel cooling flow scheme better regulates cylinder temperature for improved resistance to detonation, allowing for more ignition advance. Although Subaru's variable valve timing is now found on both the intake and exhaust side of the 3.6-liter mill, the 3.0-liter engine's variable valve-lift mechanism has been deleted.

    The five-speed automatic transmission has also received a thorough makeover. Taller ratios in 1st, 2nd, 3rd and 5th gear of the revised, lighter gearbox keep shift points reasonably similar to the previous autobox. Meanwhile, revised shift-mapping and a new torque converter are said to deliver quicker, smoother shifts, as well as a dramatic reduction in hunting from one ratio to another. Even so, we can't remember making any complaints about the old transmission.

    The Magic Formula: More Power, Lower Fuel Cost
    Driven back to back with a 2007 B9 Tribeca, the new 2008 Subaru SUV doesn't feel significantly faster, just a shade more eager while squirting around town, which suits its mission just fine. As tested at the track, the 2008 Tribeca proves acceptably rapid, getting to 60 mph in 7.8 seconds and running the quarter-mile in 16.1 seconds at 86.1 mph. There's less engine noise inside, too, perhaps due to revisions to the valve train's chain-drive mechanism.

    Fuel economy estimates are 16 mpg city/21 mpg highway under the new EPA calculation that starts with 2008 models. (See our Special Report on the new EPA standards.) When we actually compared real-world fuel economy, we discovered that the new 2008 Tribeca is no thirstier than its progenitor. We averaged 16.5 mpg over a few tanks of mixed driving, matching the fuel economy we achieved in the 2006 B9 Tribeca. With more thrust and the cheaper running costs of lower-priced fuel, the new 3.6-liter Subaru engine is a smart combination.

    Still a Solid Choice
    Pointing the Tribeca around curves is a familiar exercise, as few of its underpinnings have been changed, save for revised rear bushings said to improve already well-dialed ride quality. There are no changes to the suspension geometry in the new model.

    The Tribeca still steers with linear response and the right amount of effort, and composure is maintained up to its modest 0.78g cornering limit. The Tribeca's 62.1-mph slalom speed is electronically limited by the non-defeatable stability control. Though body roll is well reined in, the Tribeca is still not infused with the sporting character you might expect from Subaru's all-wheel-drive cars.

    So that's it, then. Now that the oddball styling has been addressed, Subaru hopes its flagship will find the sales success that has eluded it so far. Still, style isn't everything. Perhaps the next step in the Tribeca's evolution is to have it fall in line with Subaru's corporate identity of unpretentious, rugged fun.

    The manufacturer provided Edmunds this vehicle for the purposes of evaluation.

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    Speed Read

    Featured Specs

    • 3.6-liter flat-6
    • 256 hp and 247 lb-ft on regular fuel
    • Smarter 5-speed automatic
    • Standard all-wheel drive

    What Works

    Increased poke a welcome addition; styling less likely to polarize opinions.

    What Needs Work

    Styling less likely to polarize opinions; attractive interior makes a few concessions to style; a sport package wouldn't hurt.

    Tags

    Specs & Performance

    Vehicle
    MakeSubaru
    ModelTribeca
    Model year2008
    StyleSUV
    Base MSRP$37,795
    As-tested MSRP$38,440
    Drive typeAll-wheel drive
    Transmission type5-speed automatic
    Engine typeHorizontally opposed six-cylinder
    Displacement (cc/cu-in)3599cc (220 cu-in)
    Valvetraindouble overhead camshaft
    Compression ratio (x:1)10.5
    Horsepower (hp @ rpm)256 @ 6,000
    Torque (lb-ft @ rpm)247 @ 4,400
    Brakes, frontFour-wheel disc brakes
    Brakes, rearventilated disc
    Steering typePower-assisted rack-and-pinion
    Suspension, frontStruts with stabilizer bar
    Suspension, rearDouble wishbone with stabilizer bar
    Tire size, front255/55R18
    Tire size, rear255/55R18
    Tire brandGoodyear
    Tire modelEagle
    Tire typeall season
    Wheel size18 X 8.0
    Wheel materialalloy
    Curb weight, mfr. claim (lbs.)4294
    Fuel typeRegular unleaded
    Fuel tank capacity (gal)16.9
    EPA fuel economy (mpg)16 City/ 21 Highway
    Edmunds observed (mpg)16.5
    Conditions for Testing
    Temperature (°F)65.4
    Elevation (ft.)420
    Wind (mph, direction)3
    Performance
    0 - 30 (sec.)2.8
    0 - 45 (sec.)5
    0 - 60 (sec.)7.8
    0 - 75 (sec.)12.1
    1/4 mile (sec. @ mph)16.1 @ 86.1
    30 - 0 (ft.)32
    60 - 0 (ft.)127
    Braking ratingAverage
    Slalom, 6 x 100 ft (mph)62.2
    Skid pad, 200 ft diameter (lateral g)0.78
    Handling ratingGood
    Sound level @ idle (db)41
    Sound level @ full throttle (db)63
    Sound level @ 70 mph cruise (db)73
    Acceleration commentsNew engine still doesn't feel as strong as we'd like although its rev-matching downshifts are a nice touch. The Tribeca's transmission won't hold 2nd gear to redline -- it upshifts to 3rd. The Tribeca's quickest runs came in Drive rather than in Manual mode.
    Braking commentsThe Tribeca's brake pedal has lots of long, squishy travel but is still very effective at stopping the car. There was no noticeable fade over five full-ABS stops.
    Handling commentsThe Tribeca has less body roll than many vehicles in the segment. Its heavy steering effort makes driving quickly a bit of an effort, however. It's stable through transitions and resorts to understeer at the limit. Around the skid pad, the stability control makes itself known through individual brake application, which very obviously sends the Tribeca in the driver's chosen direction without heavily compromising speed like many similar systems.
    Specifications
    Length (in.)191.5
    Width (in.)73.9
    Height (in.)66.4
    Wheelbase (in.)108.2
    Front Track (in.)62.2
    Rear Track (in.)62.1
    Turning circle (ft)35.4
    Legroom, front (in.)42.3
    Legroom, rear (in.)34.3
    Legroom, 3rd row (in.)30.9
    Headroom, front (in.)38.9
    Headroom, rear (in.)38.2
    Headroom, 3rd row (in.)36.2
    Shoulder room, front (in.)58.1
    Shoulder room, rear (in.)57.5
    Shoulder room, 3rd row (in.)51.3
    Seating capacity7
    Cargo volume (cu-ft)37.6 with third row folded and second row up
    Max. cargo volume, seats folded (cu-ft)74.4 with all rear seats down
    Warranty Information
    Bumper-to-bumper3 years/36,000 miles
    Powertrain5 years/60,000 miles
    Corrosion5 years/unlimited mileage
    Roadside assistance3 years/36,000 miles
    Scheduled maintenanceNot covered
    Safety Information
    Front airbagsStandard
    Side airbagsStandard
    Head airbagsStandard
    Antilock brakesStandard
    Electronic brake enhancementsABS, electronic brakeforce distribution
    Traction controlStandard
    Stability controlStandard
    Rollover protectionN/A
    Tire-pressure monitoring systemtire pressure monitoring
    Emergency assistance systemN/A
    NHTSA crash test, driver5 stars
    NHTSA crash test, passenger5 stars
    NHTSA crash test, side front5 stars
    NHTSA crash test, side rear5 stars
    NHTSA rollover resistanceNot tested
    CollapseSpecs and Performance Expand Collapse

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