Pecheles Automotive Compares 2018 Audi Q7 VS 2018 Chevrolet Tahoe Near Greenville, NC

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2018 Audi Q7

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2018 Audi Q7

VS
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2018 Chevrolet Tahoe

Safety Comparison

For enhanced safety, the front and middle seat shoulder belts of the Audi Q7 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Chevrolet Tahoe doesn’t offer pretensioners for the middle seat belts.

The Q7’s pre-crash 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 Q7 has a standard Secondary Collision Brake Assist, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Tahoe doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

Over 200 people are killed each year when backed over by motor vehicles. The Q7 offers an optional backup collision prevention system which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Tahoe doesn’t offer backup collision prevention brakes.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the Q7. But it costs extra on the Tahoe.

A passive infrared night vision system optional on the Q7 Prestige helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard. The Tahoe doesn’t offer a night vision system.

The Q7 offers an optional Top View Cameras to allow the driver to see objects all around the vehicle on a screen. The Tahoe only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

For better protection of the passenger compartment, the Q7 uses safety cell construction with a three-dimensional high-strength frame that surrounds the passenger compartment. It provides extra impact protection and a sturdy mounting location for door hardware and side impact beams. The Tahoe uses a body-on-frame design, which has no frame members above the floor of the vehicle.

Both the Q7 and the Tahoe have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available lane departure warning systems, blind spot warning systems and rear cross-path warning.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and its standard front crash prevention system, the Insurance Institute for Highway Safety grants the Q7 the rating of “Top Pick” for 2017, a rating granted to only 120 vehicles tested by the IIHS. The Tahoe has not been tested, yet.

Warranty Comparison

The Q7 comes with a full 4-year/50,000-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 14,000 miles sooner.

The Q7’s corrosion warranty is 6 years and unlimited miles longer than the Tahoe’s (12/unlimited vs. 6/100,000).

Reliability Comparison

For smoother operation, better efficiency and fewer moving parts, the engines in the Q7 have an overhead cam design, rather than the old pushrod design of the engines in the Tahoe.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the Q7’s reliability 75 points higher than the Tahoe.

From surveys of all its subscribers, Consumer Reports’ April 2017 Auto Issue reports that Audi vehicles are more reliable than Chevrolet vehicles. Consumer Reports ranks Audi fourth in reliability. Chevrolet is ranked 15th.

Engine Comparison

As tested in Car and Driver the Q7 3.0T is faster than the Chevrolet Tahoe 5.3 V8:

 

Q7

Tahoe

Zero to 60 MPH

5.5 sec

7.1 sec

Zero to 100 MPH

14.5 sec

19.3 sec

5 to 60 MPH Rolling Start

6.4 sec

7.5 sec

Quarter Mile

14.2 sec

15.6 sec

Speed in 1/4 Mile

99 MPH

91 MPH

Top Speed

128 MPH

113 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the Q7 3.0T gets better fuel mileage than the Tahoe 4x4 with its standard V8 (19 city/25 hwy vs. 16 city/22 hwy). The Q7 3.0T gets better fuel mileage than the Tahoe 4x4 with its standard V8 (19 city/25 hwy vs. 14 city/22 hwy).

In heavy traffic or at stoplights the Q7’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The Tahoe doesn’t offer an automatic engine start/stop system.

Brakes and Stopping Comparison

For better stopping power the Q7’s brake rotors are larger than those on the Tahoe:

 

Q7

Tahoe

Front Rotors

14.8 inches

13 inches

Rear Rotors

13.8 inches

13.6 inches

The Q7 stops much shorter than the Tahoe:

 

Q7

Tahoe

 

70 to 0 MPH

166 feet

180 feet

Car and Driver

60 to 0 MPH

127 feet

136 feet

Consumer Reports

60 to 0 MPH (Wet)

137 feet

140 feet

Consumer Reports

Tires and Wheels Comparison

The Q7 2.0T’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 LS/LT’s standard 65 series tires. The Q7’s optional tires have a lower 40 series profile than the Tahoe’s optional 45 series tires.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires available on the Q7 can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The Tahoe doesn’t offer run-flat tires.

Suspension and Handling Comparison

For superior ride and handling, the Audi Q7 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 Q7 has standard front and rear stabilizer bars, which help keep the Q7 flat and controlled during cornering. The Tahoe’s suspension doesn’t offer a rear stabilizer bar.

For a smoother ride and more stable handling, the Q7’s wheelbase is 1.9 inches longer than on the Tahoe (117.9 inches vs. 116 inches).

The Q7 Prestige handles at .85 G’s, while the Tahoe Premier 4x4 pulls only .76 G’s of cornering force in a Car and Driver skidpad test.

The Q7 Premium Plus executes Motor Trend’s “Figure Eight” maneuver 1.9 seconds quicker than the Tahoe Premier 4x4 (26.4 seconds @ .68 average G’s vs. 28.3 seconds @ .62 average G’s).

For greater off-road capability the Q7 has a greater minimum ground clearance than the Tahoe (8.3 vs. 7.9 inches), allowing the Q7 to travel over rougher terrain without being stopped or damaged. The Q7 w/Air Suspension’s minimum ground clearance is 1.8 inches higher than on the Tahoe (9.7 vs. 7.9 inches).

Chassis Comparison

The Audi Q7 may be more efficient, handle and accelerate better because it weighs about 500 to 650 pounds less than the Chevrolet Tahoe.

The Q7 is 4.4 inches shorter than the Tahoe, making the Q7 easier to handle, maneuver and park in tight spaces.

Unibody construction makes the Q7’s chassis much stiffer, which contributes to better handling, and enables softer springs to be used for a better ride. Unibody construction’s stiffness also contributes to better durability and less body squeaks and rattles. The Tahoe doesn’t use unibody construction, but a body-on-frame design.

As tested by Car and Driver while under full throttle, the interior of the Q7 Prestige is quieter than the Tahoe Premier 4x4 (70 vs. 71 dB).

Passenger Space Comparison

The Q7 has .1 inches more rear headroom and 4.4 inches more third row legroom than the Tahoe.

Cargo Capacity Comparison

A low lift-over cargo hatch design makes loading and unloading the Q7 easier. The Q7’s cargo hatch lift-over height is 32.5 inches, while the Tahoe’s liftover is 35.9 inches.

The Q7’s cargo area is larger than the Tahoe’s in almost every dimension:

 

Q7

Tahoe

Length to seat (3rd/2nd/1st)

19.5”/44.7”/80.7”

11.1”/43.2”/79.9”

Max Width

52.5”

n/a

Min Width

42.6”

49.3”

Height

30”

33.9”

Ergonomics Comparison

The Q7’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 rear power window switches have to be held the entire time to open or close them fully.

If the windows are left down on the Q7 the driver can raise them all using the key in the outside lock cylinder or the keyless remote; on a hot day the driver can lower the windows. The driver of the Tahoe can only operate the windows from inside the vehicle, with the ignition on.

The Q7 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.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Q7 offers available headlight washers to keep headlight output high. The Tahoe doesn’t offer headlight washers.

To help drivers avoid possible obstacles, the Q7 offers optional cornering lights to illuminate around corners when the turn signals are activated. The Tahoe doesn’t offer cornering lights. The Q7 also offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle.

To better shield the driver and front passenger’s vision, the Q7 has standard dual-element sun visors that can block glare from two directions simultaneously. The Tahoe doesn’t offer secondary sun visors.

A manual rear sunshade is optional in the Q7 to help block heat and glare for the rear passengers. The Tahoe doesn’t offer a rear sunshade.

Economic Advantages Comparison

Insurance will cost less for the Q7 owner. The Car Book by Jack Gillis rates the Q7 with a number “8” insurance rate while the Tahoe is rated higher at a number “10” rate.

According to The Car Book by Jack Gillis, the Q7 is less expensive to operate than the Tahoe because it costs $198 less to do the manufacturer’s suggested maintenance for 50,000 miles. Typical repairs cost less on the Q7 than the Tahoe, including $130 less for a water pump, $58 less for an alternator, $13 less for front brake pads and $91 less for a fuel pump.

Recommendations Comparison

Consumer Reports® chose the Audi Q7 as its “Top Pick,” the highest scoring vehicle in its category, based on reliability, safety and performance. The Chevrolet Tahoe isn't recommended.

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