2010 GMC Terrain Sport Utility Vehicle Review & Performance

The GMC Terrain is designed to appeal to a different buyer than the Chevy Equinox, which is made in the same plant and based on a shared platform. GMC is strictly a truck company, so the Terrain has bolder styling with a larger, more distinctive grille.

The GMC body makes use of broad, sheer surfaces with rectangular shapes in the wheelwells. The side surfaces are clean, with chrome accents on the door handles and windows. Along the bottom of the exterior panels is a textured anti-chip layer of paint, conveying the message that the Terrain could be functional in harsher environments, both urban and rural. A sleek roof rack provides additional cargo capacity.

Especially when viewed from the front, the Terrain's wide stance and high beltline make for a substantial, well-planted impression. Although technically a compact, the Terrain looks much bigger.

Three wheel sizes and styles are available, including 17- and 18-inch aluminum wheels, and 19-inch chrome clad wheels.

The interior design features curving lines and close-fitting panels with nicely grained textures. The environment inside the Terrain is open and relaxed. Seats are styled using a secondary contrasting inset with exact red stitching.

The Terrain offers a high seating position, giving the driver the same kind of vision and command of the road as traditional body-on-frame SUVs. The step-in height, however, is relatively low, making entry, exit and rear-seat loading a bit easier than with the truck-based SUVs.

The seats proved comfortable and adjustable enough to keep us from squirming as the hours wore on. For our average-size frame, there was more than enough legroom, and it was easy to position the seat comfortably in relation to the steering wheel. We were told that the interior team worked extensively to optimize the accelerator pedal heal position, so that the driving position could be close to ideal for a wider range of body types. There was special attention paid to accommodating shorter drivers.

The controls and dash are low and lean away from the front occupants, an effect that creates a generously open, spacious feeling. The dash and controls are lighted in orange, with bright white instrument numerals. The interior lighting scheme is extensively developed, creating a well-lit, but not overly bright, nighttime environment.

A floating center stack, positioned so that the most-used controls are within easy reach, houses a center storage bin big enough for a laptop computer. The navigation screen is seven inches in size, with touch-screen design. A 10-gigabyte hard drive enables storage of a substantial number of music files.

The rear seat is designed with emphasis on flexible operation. It reclines and slides forward eight inches to favor either cargo room or passenger room, as the situation dictates. The optional rear-seat entertainment system has two independently operable screens, capable of providing separate amusements for two back seat occupants. The Terrain seats five, and it is not available with a third-row seat. The larger GMC Acadia is better for families who might need to seat seven or eight.

A rearview camera is standard in all models, a great safety feature as it can help the driver spot a child behind the vehicle when backing up.

OnStar and XM are pre-paid for one year. There are four power outlets for phone chargers, laptops and other portable devices.

Bluetooth allows the driver to operate cellular telephones hands-free using the Terrain's speakers, a hidden microphone, and the navigation screen.

The power rear hatch can be programmed to open part-way, in case of low-clearance garages.

We drove the GMC Terrain in and around the Michigan countryside near Detroit. The drive included a mix of interstate highway, local-two lane highways, some congested small-town main-street settings and some packed dirt roadways.

The 3.0-liter V6 is an advanced, direct-injection engine that revs smoothly and willingly. The same engine is also used in the Buick LaCrosse, but this is a higher-output version that has more aggressive induction and exhaust turning. The 3.0-liter V6 is rated at 264 hp and 222 lb-ft of torque and 17/25 mpg. The V6 is rated to tow up to 3500 pounds.

For an engine that supplies peak torque fairly high in the rev range, the V6 pulls from low rpm smoothly and well, capably powering the nearly 4000-pound Terrain around town in a satisfying, low-effort manner.

It's the six-speed transmission that makes the engine ideal, with a gear for every situation and intelligent programming that can sense the difference between subtle variations of throttle input. Sixth gear is a very tall overdrive, so the Terrain cruises at highway speeds easily and quietly, loafing along at 1500 rpm at 60 mph, and 1800 at 75 mph. And yet, the transmission and V6 allow the Terrain to respond well to demand for power on on-ramps and highway passing. Ask it to pass and it downshifts twice in quick succession, but with very little shift shock, and the tach shows 4500 rpm on the way to a 6950-rpm redline. Upon full throttle, there is a rush of available power, but not excessive noise. GMC engineers have used acoustic blankets between the engine and dash to reduce engine noise, and acoustic laminated glass to deflect wind noise. The doors are triple-sealed for further quieting and efficient climate control.

The Terrain feels substantial around town, but reasonably agile, with a progressive turn-in and minimal body roll at normal speeds. The chassis is clearly set up to deliver a smooth, isolated ride on straight, fast and sometimes potholed Midwestern roads. Relatively little vibration leaks through into the steering wheel or other touch points. The suspension is on the soft side, but handling around town and on more demanding roads is not hugely affected by body roll or brake dive. Hydraulic bushings were used to tune the chassis. Cornering is quite predictable and secure, enhanced by a relatively wide stance. All things considered, we think the Terrain offers a comfortable dynamic balance, appropriate for a multi-purpose SUV. It's not going to win an autocross, but the Terrain is still solidly planted and nicely balanced.

We also drove the a Terrain with the 2.4-liter four-cylinder engine, and from a driving performance point of view, did not notice a huge difference. Towing capacity is reduced to 1500 pounds, but overall driveability is comparable. With its own quick-shifting six-speed transmission, the 182-hp four-cylinder was easily able to power the Terrain around town, and with just a little more effort, supply confident on-ramp acceleration and no-downshift passing power on the highway. The six-speed Hydra-matic behind the 2.4-liter has slightly lower gearing, but it shifts just as smoothly and follows throttle input just as well. Especially for those who feel fuel costs will become a significant factor in the next five years, the 4-cylinder powertrain is worth consideration. The 2.4-liter gets an EPA-estimated 22/32 mpg City/Highway. This engine is rated at 182 horsepower and 172 pound-feet of torque.

GMC Terrain comes in SLE ($24,995) and SLT ($27,750) trim levels. Terrain SLE AWD ($26,000) and Terrain SLT AWD ($29,500) feature all-wheel drive. A 2.4-liter four-cylinder engine comes standard, a 3.0-liter V6 ($1,500) is optional.

Terrain SLE comes with cloth upholstery, manual air conditioning, two-way adjustable driver's seat with power height adjustment and power lumbar, reclining rear seats 60/40 split-folding, AM/FM/CD/MP3 audio with six speakers, OnStar Safe & Sound, rearview camera, power locks, power windows, power mirrors, cruise control, tilt-telescope steering wheel, automatic headlights, fog lights, 17-inch painted aluminum wheels, floor mats.

Terrain SLT upgrades with leather upholstery, automatic air conditioning, heated front seats, eight-way adjustable driver's seat, Pioneer audio with eight speakers, amplifier and subwoofer, Bluetooth, remote start ignition, 18-inch machined aluminum wheels with P235/60R18 all-season tires, color-keyed roof rack.

Options include navigation system ($2,145) includes seven-inch display and Pioneer audio; rear-seat entertainment ($1,295) includes dual displays, two wireless headsets, remote control, auxiliary jack, USB port, AM/FM/CD/MP3/WMA, DVD playback, Pioneer eight-speaker audio; programmable liftgate ($495); sunroof ($795); cargo management package ($245) includes rear cargo cover, cargo net, luggage crossbars.