Certified Benz & Beemer Compares 2016 Audi A6 VS 2016 Infiniti Q50 Near Phoenix, AZ

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2016 Audi A6

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2016 Infiniti Q50

Safety Comparison

Both the A6 and Q50 have child safety locks to prevent children from opening the rear doors. The A6 has power child safety locks, allowing the driver to activate and deactivate them from the driver's seat and to know when they're engaged. The Q50’s child locks have to be individually engaged at each rear door with a manual switch. The driver can’t know the status of the locks without opening the doors and checking them.

The A6 has a standard Audi Backguard System, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Audi Backguard System moves the headrests forward to prevent neck and spine injuries. The Q50 doesn’t offer a whiplash protection system.

The A6 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 Q50 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.

An active infrared night vision system optional on the A6 Prestige helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera and near-infrared lights to detect heat, the system then projects the image on the windshield, near the driver’s line of sight. The Q50 doesn’t offer a night vision system.

Both the A6 and the Q50 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and around view monitors.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Audi A6 is safer than the Infiniti Q50:




5 Stars

4 Stars



5 Stars

4 Stars




Neck Compression

18 lbs.

45 lbs.



5 Stars

3 Stars




Chest Compression

.4 inches

1 inches

Neck Injury Risk



Neck Stress

134 lbs.

145 lbs.

Neck Compression

12 lbs.

85 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Audi A6 is safer than the Q50:



Overall Evaluation






Head Neck Evaluation



Head injury index



Peak Head Forces

0 G’s

0 G’s

Chest Evaluation



Max Chest Compression

22 cm

28 cm

Hip & Thigh Evaluation



Hip & Thigh Injury Risk R/L



Lower Leg Evaluation



Tibia index R/L



The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Audi A6 is safer than the Infiniti Q50:



Front Seat


5 Stars

5 Stars

Abdominal Force

238 G’s

262 G’s

Hip Force

258 lbs.

320 lbs.

Into Pole


5 Stars

5 Stars

Max Damage Depth

16 inches

19 inches

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the A6 its highest rating: “Top Pick Plus” for 2016, a rating granted to only 61 vehicles tested by the IIHS. The Q50 is not even a standard “Top Pick” for 2016.

Warranty Comparison

The A6’s corrosion warranty is 5 years longer than the Q50’s (12 vs. 7 years).

There are over 66 percent more Audi dealers than there are Infiniti dealers, which makes it much easier should you ever need service under the A6’s warranty.

Reliability Comparison

To reliably power the ignition and other systems and to recharge the battery, the A6 has a standard 180-amp alternator (210-amp - A6 TDI). The Q50’s standard 150-amp alternator and largest (Red Sport 400) 170-amp alternator aren’t as powerful.

The battery on the A6 is in the trunk, which protects it from hot underhood temperatures which can degrade battery life. By keeping the A6’s battery 20 to 30 degrees cooler, its life is increased by years. The Q50’s battery is in the hot engine compartment.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without their vehicle while it’s being repaired. Consumer Reports predicts that the Audi A6’s reliability will be 92% better than the Q50 and the Audi A6 2.0T will be 125% better than the Q50.

J.D. Power and Associates’ 2015 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than Infiniti vehicles. J.D. Power ranks Audi 14th in reliability, above the industry average. With 6 more problems per 100 vehicles, Infiniti is ranked 17th.

Engine Comparison

The A6 has more powerful engines than the Q50:



A6 2.0T 2.0 turbo 4 cyl.

252 HP

273 lbs.-ft.

A6 3.0T 3.0 supercharged V6

333 HP

325 lbs.-ft.

Q50 2.0t 2.0 turbo 4 cyl.

208 HP

258 lbs.-ft.

Q50 3.0t 3.0 turbo V6

300 HP

295 lbs.-ft.

Q50 Hybrid 3.5 DOHC V6 hybrid

360 HP

The A6’s 3.0 turbo V6 diesel produces 32 more horsepower (240 vs. 208) and 170 lbs.-ft. more torque (428 vs. 258) than the Q50 2.0t’s standard 2.0 turbo 4 cyl. The A6’s 3.0 turbo V6 diesel produces 133 lbs.-ft. more torque (428 vs. 295) than the Q50 3.0t’s standard 3.0 turbo V6. The A6’s 3.0 turbo V6 diesel produces 78 lbs.-ft. more torque (428 vs. 350) than the Q50 Red Sport 400’s standard 3.0 turbo V6.

As tested in Motor Trend the A6 3.0T is faster than the Q50 Hybrid:



Zero to 60 MPH

4.4 sec

4.9 sec

Quarter Mile

13 sec

13.6 sec

Speed in 1/4 Mile

107 MPH

103.6 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the A6 3.0 TDI gets better fuel mileage than the Q50 Hybrid AWD (25 city/38 hwy vs. 27 city/31 hwy).

On the EPA test cycle the A6 gets better fuel mileage than the Q50:





24 city/35 hwy

23 city/31 hwy


20 city/30 hwy


19 city/29 hwy

3.0t Sport/Auto

20 city/27 hwy

Red Sport 400/Auto



22 city/32 hwy

22 city/28 hwy



20 city/30 hwy

19 city/28 hwy



18 city/26 hwy

3.0t Sport/Auto


19 city/26 hwy

Red Sport 400/Auto

Regardless of its engine, the A6’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) Infiniti only offers an automatic engine start/stop system on the Q50 Hybrid/2.0t.

The A6 TDI’s standard fuel tank has 1.4 gallons more fuel capacity than the Q50 Hybrid’s standard fuel tank (19.2 vs. 17.8 gallons), for longer range between fill-ups.

Brakes and Stopping Comparison

For better stopping power the A6’s brake rotors are larger than those on the Q50:



Front Rotors

13.6 inches

12.6 inches

Rear Rotors

13 inches

12.1 inches

The A6 stops shorter than the Q50:



60 to 0 MPH

106 feet

115 feet

Motor Trend

Tires and Wheels Comparison

For better traction, the A6 has larger standard tires than the Q50 (245/45R18 vs. 225/55R17). The A6’s optional tires are larger than the largest tires available on the Q50 (255/40R19 vs. 245/40R19).

The A6’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Q50’s standard 55 series tires. The A6’s optional tires have a lower 35 series profile than the Q50’s optional 40 series front tires.

For better ride, handling and brake cooling the A6 has standard 18-inch wheels. Smaller 17-inch wheels are standard on the Q50. The A6’s optional 20-inch wheels are larger than the 19-inch wheels optional on the Q50.

Suspension and Handling Comparison

The A6 has standard front and rear gas-charged shocks for better control over choppy roads. The Q50’s suspension doesn’t offer gas-charged shocks.

For a smoother ride and more stable handling, the A6’s wheelbase is 2.4 inches longer than on the Q50 (114.6 inches vs. 112.2 inches).

For better handling and stability, the track (width between the wheels) on the A6 is 3.5 inches wider in the front and 2.1 inches wider in the rear than the average track on the Q50.

The A6 3.0T Quattro handles at .95 G’s, while the Q50 pulls only .87 G’s of cornering force in a Motor Trend skidpad test.

The A6 3.0T Quattro executes Motor Trend’s “Figure Eight” maneuver 1.2 seconds quicker than the Q50 (25.1 seconds @ .74 average G’s vs. 26.3 seconds @ .71 average G’s).

Passenger Space Comparison

The A6 has .8 inches more front shoulder room, .3 inches more rear headroom, 2.3 inches more rear legroom and .2 inches more rear shoulder room than the Q50.

Cargo Capacity Comparison

The A6 has a larger trunk than the Q50 (14.1 vs. 13.5 cubic feet). The A6 has a larger trunk than the Q50 Hybrid (14.1 vs. 9.4 cubic feet).

The A6’s standard rear seats fold to accommodate long and bulky cargo. The Q50 Base/Hybrid doesn’t offer folding rear seats, only a ski pass-through.

To make loading and unloading groceries and cargo easier, especially for short adults or children, the A6 Prestige has a standard power trunk, which opens and closes automatically by pressing a button. The Q50 doesn’t offer a power trunk.

Ergonomics Comparison

Unlike the driver-only memory system optional at extra cost in the Q50 Premium/Sport, the A6 Prestige offers an optional passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position (with optional power wheel adjuster) and outside mirror angle and the front passenger seat also adjusts to the new passenger’s preset preferences.

The A6’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 Q50, and is not available on all models.

The A6 Prestige has a standard heads-up display which projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Q50 doesn’t offer a heads-up display.

The power windows standard on both the A6 and the Q50 have locks to prevent small children from operating them. When the lock on the A6 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The Q50 prevents the driver from operating the other windows just as it does the other passengers.

The A6’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 Q50’s rear power window switches have to be held the entire time to open or close them fully.

The A6’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 Q50’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

Heated windshield washer nozzles are standard on the A6 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The Q50 doesn’t offer heated windshield washer nozzles.

A power rear sunshade is optional in the A6 Premium Plus/Prestige to help block heat and glare for the rear passengers. The Q50 doesn’t offer a rear sunshade.

The A6 has standard heated front seats. Heated front seats cost extra on the Q50, and are only available on the Q50 Premium/Sport. The A6 also offers optional heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Q50.

Standard air conditioned seats in the A6 Prestige keep the driver and front passenger comfortable and take the sting out of hot seats in Summer. The Q50 doesn’t offer air conditioned seats.

Recommendations Comparison

Consumer Reports® recommends the Audi A6, based on reliability, safety and performance. The Infiniti Q50 isn't recommended.

The A6 was chosen as one of Car and Driver’s “Top Ten” for 5 of the last 17 years. The Q50 has never been a Car and Driver “Top Ten” pick.

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