2020 Porsche Panamera vs. 2020 BMW 8 Series Gran Coupe

Detailed Review, Specifications & Comparison

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Safety

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For enhanced safety, the front seat shoulder belts of the Porsche Panamera 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 8 Series Gran Coupe doesn’t offer height-adjustable seat belts.

The Panamera offers available whiplash protection, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the whiplash protection system moves the headrests forward to prevent neck and spine injuries. The 8 Series Gran Coupe doesn’t offer a whiplash protection system.

Both the Panamera and the 8 Series Gran Coupe 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

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J.D. Power and Associates’ 2019 Initial Quality Study of new car owners surveyed provide the statistics that show that Porsche vehicles are better in initial quality than BMW vehicles. J.D. Power ranks Porsche 15th in initial quality. With 6 more problems per 100 vehicles, BMW is ranked 20th.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Porsche vehicles are more reliable than BMW vehicles. J.D. Power ranks Porsche second in reliability, above the industry average. With 14 more problems per 100 vehicles, BMW is ranked 7th.

From surveys of all its subscribers, Consumer Reports’ December 2019 Auto Issue reports that Porsche vehicles are more reliable than BMW vehicles. Consumer Reports ranks Porsche fourth in reliability. BMW is ranked 17th.

Engine

© 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 2020/01/25

The Panamera has more powerful engines than the 8 Series Gran Coupe:

Horsepower

Torque

Panamera 4S 2.9 turbo V6

440 HP

405 lbs.-ft.

Panamera GTS 4.0 turbo V8

453 HP

457 lbs.-ft.

Panamera 4 E-Hybrid 2.9 turbo V6

457 HP

516 lbs.-ft.

Panamera Turbo 4.0 turbo V8

550 HP

567 lbs.-ft.

Panamera Turbo S E-Hybrid 4.0 turbo V8

677 HP

626 lbs.-ft.

840i Gran Coupe 3.0 turbo 6-cylinder

335 HP

368 lbs.-ft.

M850i Gran Coupe 4.4 turbo V8

523 HP

553 lbs.-ft.

Fuel Economy and Range

© 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 2020/01/25

On the EPA test cycle the Panamera E-Hybrid running on electricity gets better fuel mileage than the 8 Series Gran Coupe:

MPGe

Panamera E-Hybrid

AWD

2.9 turbo V6 Hybrid

48 city/54 hwy

4.0 turbo V8 Hybrid

46 city/51 hwy

MPG

8 Series Gran Coupe

RWD

3.0 turbo 6-cyl.

22 city/29 hwy

AWD

3.0 turbo 6-cyl.

20 city/27 hwy

4.4 turbo V8

17 city/25 hwy

On the EPA test cycle the Panamera Turbo running its gasoline engine gets better fuel mileage than the M850i Gran Coupe (18 city/25 hwy vs. 17 city/25 hwy).

The Panamera 4 E-Hybrid can drive on battery power alone for up to 14 miles. The 8 Series Gran Coupe must run its internal combustion engine to move.

An engine control system that can shut down half of the engine’s cylinders helps improve the Panamera Turbo/GTS’ fuel efficiency. The 8 Series Gran Coupe doesn’t offer a system that can shut down part of the engine.

The Panamera E Hybrid’s standard fuel tank has 3.1 gallons more fuel capacity than the 8 Series Gran Coupe (21.1 vs. 18 gallons), for longer range between fill-ups. The Panamera’s standard fuel tank has 5.7 gallons more fuel capacity than the 8 Series Gran Coupe (23.7 vs. 18 gallons).

Transmission

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The Panamera offers a standard sequential manual gearbox (SMG). With no clutch pedal to worry about and a fully automatic mode, an SMG is much more efficient than a conventional automatic but just as easy to drive. The 8 Series Gran Coupe doesn’t offer an SMG or a conventional manual transmission.

Brakes and Stopping

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For better stopping power the Panamera Turbo’s front brake rotors are larger than those on the 8 Series Gran Coupe:

Panamera Turbo

Panamera opt.

8 Series

Front Rotors

16.1 inches

16.5 inches

15.6 inches

Rear Rotors

15 inches

16.1 inches

15.7 inches

The Panamera offers optional heat-treated ceramic brake rotors, which last ten to twenty times as long as conventional cast iron rotors, don’t rust, don’t fade during repeated high speed braking, and their lighter weight contribute to better braking, handling and acceleration. The 8 Series Gran Coupe doesn’t offer ceramic brake rotors.

Tires and Wheels

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For better traction, the Panamera has larger standard tires than the 8 Series Gran Coupe (F:265/45R19 & R:295/40R19 vs. F:245/45R18 & R:275/40R18). The Panamera’s optional tires are larger than the largest tires available on the 8 Series Gran Coupe (F:275/40R20 & R:315/35R20 vs. F:245/45R18 & R:275/40R18).

For better ride, handling and brake cooling the Panamera has standard 19-inch wheels. Smaller 18-inch wheels are standard on the 840i Gran Coupe. The Panamera’s optional 21-inch wheels are larger than the 20-inch wheels optional on the 8 Series Gran Coupe.

Suspension and Handling

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The Panamera has a standard automatic load leveling suspension to keep ride height level with a heavy load or when towing. The 8 Series Gran Coupe doesn’t offer a load leveling suspension.

For better handling and stability, the average track (width between the wheels) on the Panamera is 1.4 inches wider in the front than the track on the 8 Series Gran Coupe.

For better maneuverability, the Panamera’s turning circle is tighter than the 8 Series Gran Coupe’s:

Panamera

8 Series Gran Coupe

SWB 4dr Hatchback

37.4 feet

40.4 feet

LWB 4dr Hatchback

38.7 feet

n/a

AWDSWB 4dr Hatchback

37.4 feet

40.4 feet

AWD LWB 4dr Hatchback

38.7 feet

n/a

Chassis

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The Panamera offers available computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The 8 Series Gran Coupe doesn’t offer active noise cancellation.

Passenger Space

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For enhanced passenger comfort on long trips the Panamera’s available rear seats recline. The 8 Series Gran Coupe’s rear seats don’t recline.

Cargo Capacity

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The Panamera has a much larger trunk with its rear seat up than the 8 Series (17.6 vs. 15.5 cubic feet).

The Panamera Sport Turismo has a much larger trunk with its rear seat up than the 8 Series Gran Coupe (18.3 vs. 15.5 cubic feet).

Servicing Ease

© 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 2020/01/25

J.D. Power and Associates surveys of service recipients show that Porsche service is better than BMW. J.D. Power ranks Porsche first in service department satisfaction. With a 46% lower rating, BMW is ranked 11th.

Ergonomics

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The Panamera’s instruments include an oil pressure gauge and a temperature gauge - which could save your engine! Often ‘idiot lights’ don’t warn you until damage has been done. The 8 Series Gran Coupe does not have an oil pressure gauge.

To improve rear visibility by keeping the rear window clear, the Panamera offers an optional rear wiper. The 8 Series Gran Coupe doesn’t offer a rear wiper.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The Panamera offers available headlight washers to keep headlight output high. The 8 Series Gran Coupe doesn’t offer headlight washers.

Optional air conditioned front and rear seats keep the Panamera’s passengers comfortable and take the sting out of hot leather in summer. The 8 Series Gran Coupe doesn’t offer air-conditioned seats in the rear.

The Panamera has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable. The 8 Series Gran Coupe doesn’t offer a rear seat center armrest.

The Panamera offers optional massaging front and rear seats in order to maximize comfort and eliminate fatigue on long trips. Massaging seats aren’t available in the 8 Series Gran Coupe.

The Panamera Sport Turismo offers an optional 115-volt a/c outlet in the cargo area, allowing you to recharge a laptop or run small household appliances without special adapters that can break or get misplaced. The 8 Series Gran Coupe doesn’t offer a house-current electrical outlet.

Recommendations

© 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 2020/01/25

The Porsche Panamera outsold the BMW 8 Series by almost three to one during the 2019 model year.

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