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The All New 2007 2007 Acadia
A Large Crossover with Room and Towing Ability

There is all sorts of talk about the new trend in replacing sport utility vehicles with lighter, car-based vehicles called Crossover utility vehicles. Among the biggest, and more flexible is the all-new Acadia from GMC. Here's a CUV that has the space and much of the performance and style of regular SUVs, but with the better ride and much better fuel economy of a car. This means instead of getting 13 to 16 mpg, you will get mileage in the upper teens to mid 20s.

The Acadia is GMC's first crossover SUV that offers seating for up to eight people and the capability of an SUV with a smooth, responsive and car-like driving experience. Acadia features a body-frame integral design that enables lower step-in height and the generous interior space of larger SUVs. A comprehensive safety system includes six standard air bags and standard StabiliTrak electronic stability control system with rollover mitigation technology.

Acadia is powered by GM’s 3.6L V-6 VVT, a high-feature engine with variable valve timing that is designed for good fuel economy, low emissions and exceptional smoothness. It is rated at 275 horsepower (205 kW) and 251 lb.-ft. of torque (340 Nm).* The engine is backed by a new, fuel-saving Hydra-Matic 6T75 six-speed automatic transmission. Acadia is available in front-wheel drive and all-wheel drive models.

Fuel economy is 18 mpg in city driving and 26 mpg on the highway with FWD models and 17 and 24 mpg with AWD models. Acadia can tow up to 4,500 pounds (2,041 kg), when properly equipped.

Smooth, responsive ride and handling

Acadia rides on a long 118.9-inch (3020.7 mm) wheelbase and wide 67.28-inch (1709 mm) front/rear tracks – a combination that lowers the center of gravity and enables smooth, stable ride and handling. Sharp reflexes are also supported by independent front and rear suspensions. The front suspension features a MacPherson strut design, with a direct-acting stabilizer bar and aluminum knuckles. Isolated mounting points help reduce noise and vibration.

The rear suspension uses a compact, state-of-the-art linked “H” design, which uses an isolated mounting system that reduces noise and vibration transmitted to the passenger compartment. This design enables the handling prowess that comes with an independent suspension, but with minimal floor pan intrusion – a feature that helps the Acadia offer generous passenger and cargo space. The suspension systems enable Acadia ’s 4,500-pound (2,042 kg) towing capacity.

Acadia features standard power-assisted rack-and-pinion steering, with variable-effort steering available. The suspension and steering system meet the road via standard 18-inch wheels and tires, with 19-inch wheels available. Four-wheel disc brakes with ABS are standard. The Acadia also offers the following standard features that enhance ride and handling, as well as safety:

  • StabiliTrak stability control system with rollover mitigation technology
  • Traction control (FWD models)
  • Tire pressure monitoring system

We found the Acadia to be very easy to drive with intuitive controls and a smooth ride, not at all like a truck-based SUV. It is also very much a luxury vehicle with available features that compare favorably with more costly vehicles.

Acadia ’s unibody structure enables lower entry/exit height for passengers. Despite the vehicle’s SUV-like front-end height, the front door step-in height is only 18.9 inches (480 mm); the rear door step-in height is 19.8 inches (503 mm). Entry to the third-row seat is eased with very wide rear doors and GM’s exclusive Smart Slide second-row seat feature, which aids passenger access to the third-row seats. Wider than the doors on most other SUVs, the Acadia ’s rear door width is enabled by the vehicle’s long wheelbase. The rear door opening was maximized by reducing the space between the rear door and the leading edge of the door opening. Engineers were able to maximize the opening space while providing optimal chassis integrity for maximum occupant protection.

Powertrain details

GM’s 3.6L V-6 with variable valve timing (VVT) and a new Hydra-Matic 6T75 six-speed automatic transmission is the Acadia ’s standard powertrain combination. Front-wheel drive and all-wheel drive configurations are available.

The 3.6L V-6 VVT is a sophisticated dual-overhead camshaft engine based on GM’s global V-6 architecture. GMC says the engine was jointly developed at GM technical centers in Australia , Germany , Sweden and North America . The engine uses full four-cam phasing, rapid data processing and torque-based engine management to optimize power, economy and emissions performance.

In the Acadia, the 3.6L V-6 VVT produces 275 horsepower (205 kW) and 251 lb.-ft. of torque (340 Nm).* The four-cam phasing operation of the variable valve timing system ensures linear delivery of torque across the rpm band, while features such as electronic throttle control deliver crisp, immediate response and feedback. The engine uses electro-hydraulic vane-type phasers to rotate the camshafts relative to the cam-drive sprockets, allowing infinitely variable combinations over a range of 50 degrees.

The aluminum-intensive 3.6L V-6 VVT is designed to deliver its performance with world-class smoothness, quietness and durability. We found the engine to smooth and powerful offering very good acceleration and low noise levels.

A new Hydra-Matic 6T75 electronically controlled six-speed automatic transmission backs the 3.6L V-6 VVT. It is an advanced transmission with clutch-to-clutch shift operation for front- and all-wheel-drive vehicles. Clutch-to-clutch operation allows for reduced complexity and compact packaging. A wide, 6.04:1 overall ratio helps the transmission deliver both performance and fuel economy, enabling up to 8 percent improved performance and up to 4 percent improved fuel economy when compared with current front-wheel-drive four-speed automatics.

The transmission’s six-gear configuration allows for a “steep” 4.48:1 first gear, which helps deliver exceptional launch feel, and a 0.74:1 overdrive sixth gear – the “tall” overdrive gear lowers rpm at high speeds, reducing noise and vibration. Fifth gear is 1:1 direct drive. Shorter steps between the gears, compared with a four-speed automatic, enhance performance and feel, as the transmission quickly finds the best gear for the vehicle speed and road conditions. Also, the 6T75 offers the capability of driver shift control (DSC), which allows the driver to use tap-up/tap-down shifting to select the desired gear for specific road conditions, such as driving up a steep hill.

Acadia ’s available all-wheel drive system provides increased traction on slippery roads. The system works by always delivering a slight amount of torque to the rear wheels. There is no driver intervention; the system automatically decides how much torque to apply and it automatically delivers torque to the wheels that have the best traction .

Consumers will just like the way the transmission is seamless in operation. We also like the push-button manumatic feature on the shifter. A simple to use rocker switch allows you to shift gears for better performance. Sometimes, the Acadia felt a bit sluggish because it quickly advances into higher gears to save on fuel. But if more performance is wanted, just slip the selector to "low" and used the rocker switch to select the gear you want.

Athletic design

Sharing familial design cues with GMC’s other all-new full-size SUVs, Yukon and Yukon XL, the Acadia features athletic styling that underscores GMC’s professional grade philosophy. The design is accented with polished aluminum roof rails, select bright work and large, prominent headlamps that flank a detailed grille. The headlamps use projector beam technology to deliver bright, precise lighting and are mounted in houses that have a crystal-clear, jewel-like appearance. High-intensity discharge lamps (HID) are available.

The profile of the Acadia is sleek and aerodynamic, with a sporty, tapered roof line. Distinctive LED taillamps and a rear spoiler enhance the vehicle’s sporty appearance, as do large its large tires. Acadia also is aerodynamically efficient, with a coefficient of drag of just 0.361 – which helps reduce wind noise and enhances fuel economy.

Acadia is available in nine exterior colors: Summit White, Gold Mist Metallic, Liquid Silver Metallic, Red Jewel Tint, Deep Blue Metallic, White Diamond Tricoat, Blue-Gold Crystal Metallic, Carbon Metallic and Medium Brown Metallic.

Spacious and refined interior

As with the exterior design, Acadia ’s interior reflects refinement. Acadia offers three rows of seating, with the third row capable of comfortably seating adults while simultaneously providing generous storage space behind the third-row seat.

A carlike “low and away” instrument panel enhances the feeling of openness in the front-row seats and provides a commanding outward view. The instrument panel and other interior elements feature high-quality, low-gloss materials and tight gap tolerances. Acadia can be configured for seven or eight passengers, including two front bucket seats, a 60/40-split second-row bench (three passengers) or two second-row captain’s chairs (two passengers) and a 60/40-split third-row bench seat. Leather seats also are available.

GM’s exclusive Smart Slide feature is standard on all second-row configurations, allowing quick and easy access to the third-row seating area. The second-row seat cushion flips up while the seatback slides forward, effectively compressing the space occupied by the seat. It operates with one hand and enables adjustable fore/aft positioning of the second-row seat. When adjusted rearward, the second-row seat provides more legroom for taller passengers; when adjusted forward, it provides more storage space or additional legroom for third-row passengers. Seating space is sufficient for adults in all positions.

Along with passenger comfort, Acadia offers generous cargo room, including an estimated 116.9 cu. ft. (3310.6 L) when the second- and third-row seats are folded. In fact, Acadia even offers an estimated 19.7 cu. ft. (557.9 L) of cargo space behind the third-row seat when it’s in its upright position – capacity many other SUVs and crossovers cannot come close to matching. Also, Acadia ’s second- and third-row seat fold flat for even more cargo-carrying capacity, and a covered rear cargo convenience center allows items to be stored out of sight beneath the rear cargo floor.

Acadia has a wide range of useful optional and standard equipment, including heated outside mirrors, intermittent rear wiper, ultrasonic parking assist, power liftgate, extended-range remote vehicle starting system, heated windshield washer fluid, large power-operated tilt-and-slide sunroof with rear skylight, DVD entertainment system and a DVD-based navigation system and Bose 5.1 Surround Sound Audio system. Acadia also offers an exclusive head-up display that projects instrument readouts and other features on to the windshield for easy, eyes-on-the-road reference.

Safety

Acadia is equipped with six standard air bags: two dual-stage frontal air bags, for the driver and front passenger, two seat-mounted side-impact air bags in the first row and two head curtain side impact air bags that cover all three seating rows. The head curtain air bags are among the longest air bags in any production vehicle. Complementing the air bags is GM’s rollover sensing system, which can preemptively activate the side-impact air bags if sensors determine a rollover is imminent. In the event of a rollover, the air bags stay inflated longer to provide increased occupant containment and because rollovers are typically longer than non-rollover crashes.

Acadia also comes standard with OnStar Generation 7 (with a one-year Safe and Sound plan), which features the Advanced Automatic Crash Notification system. If the crash activates an air bag, the OnStar system automatically notifies an OnStar advisor, who immediately calls the vehicle and/or summons emergency help.

Overall, the 2007 Acadia is an outstanding luxury SUV with plenty of family room. It has a distinctive look that both is sporty looking and aggressive. The interior is nicely finished with very good fit and finish, but with a look that is more European than you would expect of a GM vehicle. Frankly, some luxury SUV are not as good looking. While you can get all-wheel drive, the Acadia is not an offroad vehicle, but a good choice for snow belt states where all-wheel-drive will  help keep you on the road. But getting a large vehicle with better gas mileage than regular SUVs makes this a good choice if you need a large people-carrying vehicle with the look of an SUV.

SPECIFICATIONS

(See GM of Canada section for Canadian product information.)

Overview

Models: GMC Acadia
Body style / driveline: crossover SUV / front-engine; front-wheel drive and all-wheel drive
Construction: body-frame integral
EPA vehicle class: Sport Utility Vehicle
Manufacturing location: Lansing Delta Township Assy. Plant, Lansing , Mich.
Key competitors: Honda Pilot, Dodge Durango , Ford Explorer

Engine

Type: 3.6L V-6
Displacement (cu in / cc): 217 / 3564
Bore & Stroke (in / mm): 3.70 x 3.37 / 94 x 85.6
Block material: aluminum
Cylinder head material: aluminum
Valvetrain: DOHC; 4 valves per cylinder; variable valve timing
Fuel delivery: sequential fuel injection
Compression ratio: 10.2:1
Horsepower (hp / kW): 275 / 205 @ 6600*
Torque (lb-ft / Nm): 251 / 340 @ 3200*
Recommended fuel: regular unleaded
Max. engine rpm (fuel cutoff): 6900 rpm
Emissions controls: dual close-coupled converters; 2 pre- and 2-post oxygen sensors
EPA fuel economy
(city / hwy):
18 / 26 (FWD)
17 / 24 (AWD)

Transmission& Power Take Off Unit (PTU)

Manufacturer: GM Powertrain
Type: Hydra-Matic 6T75 6-speed FWD/AWD automatic transmission
Gear Ratio (:1)

 

First: 4.48
Second: 2.87
Third: 1.80
Fourth: 1.47
Fifth: 1.0
Sixth: 0.742
Reverse: 2.88
Final drive ratio: 3.16 (FWD / AWD) 2.73 (FWD)

Chassis/Suspension

Front: coil-over strut; direct acting stabilizer bar; full perimeter isolated cradle
Rear: linked H-arm independent suspension; coil springs with twin-tube shock absorbers mounted on isolated sub-frame
Steering type: hydraulic rack-and-pinion; straight ratio and variable effort
Steering ratio: 16.1
Steer wheel turns, lock-to-lock: 2.89
Turning circle, curb-to-curb (ft / m): 40.4 / 12.3

Brakes

Type: 4-wheel disc
Rotor diameter (in / mm): front: 12.8 x 1.1 / 325 x 29, ventilated
rear: 13 x 0.8 / 331 x 20, ventilated
Anti-lock braking system (ABS): Bosch 8.0 Chassis Controls: ABS / ETC / ESC w/rollover mitigation

Wheels/Tires

Wheel size and type: 18 x 7.5-in; cast aluminum (std)
19 x 8-in; cast aluminum (opt)
Tire size and type: P255/65R18 ALS blackwall (std)
P255/60R19 AL3 blackwall (opt)

Dimensions

Exterior

Wheelbase (in / mm): 118.9 / 3020.7
Overall length (in / mm): 201.1 / 5107.9
Overall width (in / mm): 78.9 / 2004.1
Overall height (in / mm): 72.8 / 1846 (w/roof rails); 69.9 / 1775.5 (w/o roof rails)
Track

 

Front (in / mm): 67.3 / 1709.4
Rear (in / mm): 67.3 / 1709.4
Curb weight (lb / kg): 4720 / 2141 (FWD)
4925 / 2234 (AWD)
Min. ground clearance (in / mm): 7.4 / 189 (FWD and AWD)

Interior

Seating capacity: 7 or 8
Headroom

 

First row (in /mm): 40.4 / 1024 (w/o sunroof); 38.5 / 978 (w/ sunroof)
Second row (in / mm): 39.3 / 996 (w/o sunroof); 38.3 / 973 (w/ sunroof)
Third row (in / mm): 38.4 / 975.3 (w/o sunroof); 38.1 / 968 (w/ sunroof)
Legroom

 

First row (in / mm): 41.3 / 1049
Second row (in / mm): 36.9 / 937.2
Third row (in / mm): 33.2 / 843.2
Shoulder room

 

First row (in / mm): 61.9 / 1574
Second row (in / mm): 61.1 / 1551
Third row (in / mm): 57.8 / 1468
Hip room

 

First row (in / mm): 57.8 / 1468.1
Second row (in / mm): 57.9 / 1470.6
Third row (in / mm): 48.3 / 1226.8
Cargo volume

 

Second and third row folded (cu ft / L): 119.9 / 3310.6
Second row up, third row folded (cu ft / L): 68.9 / 1951.2
Behind third row (cu ft / L): 19.7 / 557.9

Capacities

Fuel tank (gal / L): 22.0 / 83.3
Engine oil (qt / L): 5.5 / 5.2
Transmission fluid (qt / L): 9.5 / 9.0 (Dexron VI only)
Cooling system (qt / L): 11.8 / 11.18
Max towing capacity (lb / kg): 4500 / 2041
GCWR (lb / kg): 9500 / 4309 (FWD)
9700 / 4400 (AWD)
GVWR (lb / kg): 6398 / 2908

 

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