Certified Benz & Beemer Compares 2012 Infiniti QX56 VS 2012 Chevrolet Tahoe Near Scottsdale, AZ

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2012 Infiniti QX56

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VS

2012 Chevrolet Tahoe

Safety Comparison

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The QX56’s optional front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The Tahoe doesn’t offer pre-crash pretensioners.

The QX56 has standard Active Head Restraints (AHR), which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the AHR system moves the headrests forward to prevent neck and spine injuries. The Tahoe doesn’t offer a whiplash protection system.

The QX56 offers optional crash mitigation brakes, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The Tahoe doesn't offer crash mitigation brakes.

The QX56’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. The Tahoe doesn’t offer a lane departure warning system.

The QX56 has a standard Around View Monitor to allow the driver to see objects all around the vehicle on a screen. The Tahoe only offers a rear monitor and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the front or sides.

Both the QX56 and the Tahoe have standard driver and passenger frontal airbags, front side-impact airbags, head airbags, front seatbelt pretensioners, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding and available all-wheel drive.

Warranty Comparison

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The QX56 comes with a full 4 year/60,000 mile basic warranty, which covers the entire truck and includes 24 hour roadside assistance. The Tahoe’s 3 year/36,000 mile basic warranty expires 1 year and 24,000 miles sooner.

Infiniti’s powertrain warranty covers the QX56 1 year longer than Chevrolet covers the Tahoe. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the Tahoe ends after only 5 years.

The QX56’s corrosion warranty is 1 year and unlimited miles longer than the Tahoe’s (7/unlimited vs. 6/100,000).

Reliability Comparison

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For smoother operation, better efficiency and fewer moving parts, the QX56 has an overhead cam design, rather than the old pushrod design of the engines in the Tahoe.

J.D. Power and Associates’ 2011 Initial Quality Study of new car owners surveyed provide the statistics that show that Infiniti vehicles are better in initial quality than Chevrolet vehicles. J.D. Power ranks Infiniti 8th in initial quality, above the industry average. With 7 more problems per 100 vehicles, Chevrolet is ranked 13th, below the industry average.

J.D. Power and Associates’ 2011 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Infiniti vehicles are more reliable than Chevrolet vehicles. J.D. Power ranks Infiniti 14th in reliability. With 5 more problems per 100 vehicles, Chevrolet is ranked 16th.

Engine Comparison

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The QX56’s 5.6 DOHC V8 produces 80 more horsepower (400 vs. 320) and 78 lbs.-ft. more torque (413 vs. 335) than the Tahoe’s standard 5.3 V8. The QX56’s 5.6 DOHC V8 produces 68 more horsepower (400 vs. 332) and 46 lbs.-ft. more torque (413 vs. 367) than the Tahoe Hybrid’s standard 6.0 V8 hybrid.

As tested in Consumer Reports the Infiniti QX56 is faster than the Chevrolet Tahoe:

QX56

Tahoe V8

Tahoe Hybrid

Zero to 30 MPH

2.7 sec

3.1 sec

3.9 sec

Zero to 60 MPH

6.9 sec

8.4 sec

9.6 sec

45 to 65 MPH Passing

5.4 sec

5.5 sec

5.5 sec

Quarter Mile

15.4 sec

16.6 sec

17.4 sec

Speed in 1/4 Mile

93.8 MPH

85.9 MPH

86 MPH

Fuel Economy and Range Comparison

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The QX56 has 1.5 gallons more fuel capacity than the Tahoe Hybrid’s standard fuel tank (26 vs. 24.5 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

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For better stopping power the QX56’s brake rotors are larger than those on the Tahoe:

QX56

Tahoe

Front Rotors

13.8 inches

13 inches

Rear Rotors

13.8 inches

13.5 inches

The QX56 stops much shorter than the Tahoe:

QX56

Tahoe

70 to 0 MPH

185 feet

201 feet

Car and Driver

60 to 0 MPH

122 feet

142 feet

Motor Trend

60 to 0 MPH (Wet)

155 feet

197 feet

Consumer Reports

Tires and Wheels Comparison

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For better traction, the QX56 has larger tires than the Tahoe (275/60R20 vs. 265/70R17).

The QX56’s standard tires provide better handling because they have a lower 60 series profile (height to width ratio) that provides a stiffer sidewall than the Tahoe’s standard 70 series tires.

For better ride, handling and brake cooling the QX56 has standard 20-inch wheels. Smaller 17-inch wheels are standard on the Tahoe.

Suspension and Handling Comparison

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For superior ride and handling, the Infiniti QX56 has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The Chevrolet Tahoe has a solid rear axle, with a non-independent rear suspension.

The QX56 has standard front and rear gas-charged shocks for better control over choppy roads. The Tahoe’s suspension doesn’t offer gas-charged shocks.

The rear suspension of the QX56 uses air springs for a smoother, controlled ride than the Tahoe, which uses coil springs. Air springs maintain proper ride height and ride more smoothly.

The QX56 has vehicle speed-sensitive variable-assist power steering, for low-effort parking, better control at highway speeds and during hard cornering, and a better feel of the road. The Tahoe doesn’t offer variable-assist power steering.

For a smoother ride and more stable handling, the QX56’s wheelbase is 5.1 inches longer than on the Tahoe (121.1 inches vs. 116 inches).

The QX56 AWD handles at .72 G’s, while the Tahoe Hybrid 4x4 pulls only .70 G’s of cornering force in a Car and Driver skidpad test.

The QX56 AWD executes Motor Trend’s “Figure Eight” maneuver 1.6 seconds quicker than the Tahoe LT 4x4 (28.4 seconds @ .58 average G’s vs. 30 seconds @ .52 average G’s).

For greater off-road capability the QX56 has a greater minimum ground clearance than the Tahoe (9.2 vs. 9.1 inches), allowing the QX56 to travel over rougher terrain without being stopped or damaged.

Passenger Space Comparison

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The QX56 has .8 inches more rear headroom, 2 inches more rear legroom and 3.2 inches more third row legroom than the Tahoe.

For enhanced passenger comfort on long trips the QX56’s middle and third row seats recline. The Tahoe LS doesn’t offer reclining middle row seats and no Tahoe model offers reclining third row seats.

Cargo Capacity Comparison

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The QX56 has a standard third row seat which folds flat into the floor. This completely clears a very large cargo area quickly, without having to lift, carry or store heavy seats, like in the Tahoe.

Both the QX56 and the Tahoe offer second row power folding seats. The QX56’s third row seats also fold up or down at the touch of a button. The Tahoe doesn’t offer power folding third row seats.

Ergonomics Comparison

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The QX56’s standard easy entry system raises the steering wheel and glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the Tahoe, and is not available on all models.

The QX56’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Tahoe’s power window switches have to be held the entire time to close them fully. Only its driver’s window opens automatically.

If the windows are left down on the QX56 the driver can raise them all using the key in the outside lock cylinder. On a hot day the driver can lower the windows from outside the vehicle using the key in the outside lock cylinder or the keyless remote. The driver of the Tahoe can only operate the windows from inside the vehicle, with the ignition on.

Infiniti Intelligent Key standard on the QX56 allows the driver to unlock the doors, cargo door and start the engine all without removing a key from pocket or purse. This eliminates searching for keys before loading groceries, getting in the car in bad weather or making a hurried start to your trip. The Chevrolet Tahoe doesn’t offer an advanced key system.

The QX56 has a standard locking fuel door with a remote release located convenient to the driver. A locking fuel door helps prevent vandalism, such as sugar in the tank and fuel theft. The Tahoe doesn’t offer a locking fuel door.

The QX56’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Tahoe’s manually variable intermittent wipers have to be constantly adjusted.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The QX56 offers available headlight washers to keep headlight output high. The Tahoe doesn’t offer headlight washers.

To help drivers see further while navigating curves, the QX56 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Tahoe doesn’t offer cornering lights.

A built-in pollen filter removes pollen, exhaust fumes and other pollutants from the QX56’s passenger compartment. This helps prevent lung and/or sinus irritation, which can trigger allergies or asthma. The Tahoe doesn’t offer a filtration system.

To keep a safe, consistent following distance, the QX56 offers an optional Intelligent Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Tahoe doesn’t offer an adaptive cruise control.

Economic Advantages Comparison

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According to The Car Book by Jack Gillis, the QX56 is less expensive to operate than the Tahoe because it costs $154 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost much less on the QX56 than the Tahoe, including $82 less for a water pump, $2 less for front brake pads, $155 less for a starter, $106 less for fuel injection, $215 less for front struts and $391 less for a timing belt/chain.

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