Certified Benz & Beemer Compares 2017 Audi A8 VS 2017 BMW 7 Near Phoenix, AZ

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2017 Audi A8

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VS

2017 BMW 7

Safety Comparison

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For enhanced safety, the front seat shoulder belts of the Audi A8 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The BMW 7 Series doesn’t offer height-adjustable seat belts.

Both the A8 and 7 Series have child safety locks to prevent children from opening the rear doors. The A8 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 7 Series’ 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 A8 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 7 Series 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.

To provide maximum traction and stability on all roads, All-Wheel Drive is standard on the A8. But it costs extra on the 7 Series.

Both the A8 and the 7 Series have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, night vision systems, lane departure warning systems, blind spot warning systems and around view monitors.

Reliability Comparison

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To reliably power the ignition and other systems and to recharge the battery, the A8 has a 190-amp alternator. The 7 Series’ standard 180-amp alternator isn’t as powerful.

J.D. Power and Associates’ 2016 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Audi vehicles are more reliable than BMW vehicles. J.D. Power ranks Audi 11th in reliability, above the industry average. With 8 more problems per 100 vehicles, BMW is ranked 14th.

Engine Comparison

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The A8 has more powerful engines than the 7 Series:

 

Horsepower

A8 L 3.0T supercharged V6

333 HP

A8 4.0T turbo V8

450 HP

740i 3.0 turbo 6 cyl.

320 HP

740e 2.0 turbo 4 cyl. hybrid

322 HP

750i 4.4 turbo V8

445 HP

As tested in Car and Driver the A8 4.0T is faster than the 750i:

 

A8

7 Series

Zero to 60 MPH

3.9 sec

4.4 sec

Zero to 100 MPH

9.8 sec

10.1 sec

5 to 60 MPH Rolling Start

5 sec

5.2 sec

Quarter Mile

12.4 sec

12.8 sec

Fuel Economy and Range Comparison

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On the EPA test cycle the A8 gets better fuel mileage than the 7 Series:

 

 

A8

7 Series

 

2WD

 

n/a

16 city/24 hwy

550i/Auto

AWD

3.0T/Auto

19 city/29 hwy

19 city/28 hwy

740i/Auto

 

4.0T/Auto

18 city/29 hwy

16 city/25 hwy

550i/Auto

An engine control system that can shut down half of the engine’s cylinders helps improve the A8 4.0T’s fuel efficiency. The 7 Series doesn’t offer a system that can shut down part of the engine.

The A8 has 9.6 gallons more fuel capacity than the 7 Series Hybrid’s standard fuel tank (21.7 vs. 12.1 gallons), for longer range between fill-ups. The A8 has 1.1 gallons more fuel capacity than the 7 Series’ standard fuel tank (21.7 vs. 20.6 gallons).

Brakes and Stopping Comparison

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For better stopping power the A8’s standard brake rotors are larger than those on the 7 Series:

 

A8

7 Series

Front Rotors

15 inches

13.7 inches

Rear Rotors

14 inches

13.6 inches

The A8 stops shorter than the 7 Series:

 

A8

7 Series

 

70 to 0 MPH

159 feet

161 feet

Car and Driver

Tires and Wheels Comparison

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For better traction, the A8 has larger standard tires than the 7 Series (255/45R19 vs. 245/50R18). The A8 4.0T’s optional tires are larger than the largest tires available on the 7 Series (275/35R21 vs. 245/50R18).

The A8’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 7 Series’ standard 50 series tires. The A8 4.0T’s optional tires have a lower 35 series profile than the 7 Series’ optional 45 series tires.

For better ride, handling and brake cooling the A8 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the 7 Series.

Suspension and Handling Comparison

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For better handling and stability, the track (width between the wheels) on the A8 is 1.3 inches wider in the front than on the 7 Series.

For better maneuverability, the A8 L’s turning circle is .3 feet tighter than the 740i’s (41.7 feet vs. 42 feet).

Chassis Comparison

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The A8 3.0T/4.0T/TDI uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The 7 Series doesn’t offer active noise cancellation.

As tested by Car and Driver, the interior of the A8 L 4.0T is quieter than the 750i xDrive:

 

A8

7 Series

At idle

36 dB

38 dB

Full-Throttle

71 dB

72 dB

70 MPH Cruising

67 dB

68 dB

Passenger Space Comparison

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The A8 has .2 inches more rear headroom and .1 inches more rear shoulder room than the 7 Series.

Ergonomics Comparison

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Heated windshield washer nozzles are standard on the A8 to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The 7 Series doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The A8 has standard headlight washers to keep headlight output high. The 7 Series doesn’t offer headlight washers.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the A8 has standard extendable sun visors. The 7 Series doesn’t offer extendable visors.

The A8 offers an optional 115-volt a/c outlet on the center console, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The 7 Series doesn’t offer a house-current electrical outlet.

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