2019 Bentley Mulsanne vs. 2019 BMW 7 Series

Detailed Review, Specifications & Comparison

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Safety

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For enhanced safety, the front and rear seat shoulder belts of the Bentley Mulsanne 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 BMW 7 Series doesn’t offer pretensioners for the rear seat belts.

For enhanced safety, the front seat shoulder belts of the Bentley Mulsanne 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 Mulsanne and 7 Series have child safety locks to prevent children from opening the rear doors. The Mulsanne 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.

Both the Mulsanne and the 7 Series have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, blind spot warning systems and rearview cameras.

The Bentley Mulsanne weighs 849 to 1869 pounds more than the BMW 7 Series. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

Warranty

© 1999 - 2020 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2020/02/18

The Mulsanne comes with a full 3-year/unlimited-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The 7 Series’ 50,000-mile basic warranty expires sooner.

Reliability

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The 7 Series’ redline is at 6200 to 7000 RPM, which causes more engine wear, and a greater chance of a catastrophic engine failure. The Mulsanne has a 4500 RPM redline.

The battery on the Mulsanne is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the Mulsanne’s battery 20 to 30 degrees cooler, its life is increased by years. The 7 Series’ battery is in the hot engine compartment.

Engine

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The Mulsanne has more powerful engines than the 7 Series:

 

Horsepower

Torque

Mulsanne 6.8 turbo V8

505 HP

752 lbs.-ft.

Mulsanne Speed 6.8 turbo V8

530 HP

811 lbs.-ft.

740i 3.0 turbo 6 cyl.

320 HP

330 lbs.-ft.

740e 2.0 turbo 4 cyl. hybrid

322 HP

369 lbs.-ft.

750i 4.4 turbo V8

443 HP

479 lbs.-ft.

Alpina B7 4.4 turbo V8

600 HP

590 lbs.-ft.

M760i 6.6 turbo V12

601 HP

590 lbs.-ft.

As tested in Motor Trend the Bentley Mulsanne (base engine) is faster than the 740e:

 

Mulsanne

7 Series

Zero to 60 MPH

4.8 sec

5.1 sec

Quarter Mile

13.3 sec

13.6 sec

Speed in 1/4 Mile

104.4 MPH

102.9 MPH

Fuel Economy and Range

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

The Mulsanne has 13.3 gallons more fuel capacity than the 7 Series Hybrid’s standard fuel tank (25.4 vs. 12.1 gallons), for longer range between fill-ups. The Mulsanne has 4.8 gallons more fuel capacity than the 7 Series’ standard fuel tank (25.4 vs. 20.6 gallons).

Brakes and Stopping

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

 

Mulsanne

740i/740e

750i

Front Rotors

15.7 inches

13.7 inches

15.5 inches

Rear Rotors

14.6 inches

13.6 inches

14.5 inches

The Mulsanne stops much shorter than the 7 Series:

 

Mulsanne

7 Series

 

60 to 0 MPH

108 feet

123 feet

Motor Trend

Tires and Wheels

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For better traction, the Mulsanne has larger tires than the 7 Series (265/45R20 vs. 245/50R18). The Mulsanne’s tires are larger than the largest tires available on the 7 Series (265/45R20 vs. 255/35R21).

The Mulsanne’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.

For better ride, handling and brake cooling the Mulsanne has standard 20-inch wheels. Smaller 18-inch wheels are standard on the 7 Series.

Suspension and Handling

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For a smoother ride and more stable handling, the Mulsanne Extended Wheelbase’s wheelbase is 12 inches longer than on the 7 Series (138.4 inches vs. 126.4 inches).

Chassis

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The Mulsanne 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 while cruising at 70 MPH, the interior of the Mulsanne is quieter than the 750i xDrive (65 vs. 68 dB).

Passenger Space

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The Mulsanne has .2 inches more front headroom and .5 inches more front legroom than the 7 Series.

Cargo Capacity

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The Mulsanne has a much larger trunk than the 7 Series (15.75 vs. 14 cubic feet).

Ergonomics

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

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