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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 6 Series Gran Turismo doesn’t offer height-adjustable seat belts.
Both the Panamera and 6 Series Gran Turismo have child safety locks to prevent children from opening the rear doors. The Panamera offers optional 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 6 Series Gran Turismo’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.
Both the Panamera and the 6 Series Gran Turismo 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.
J.D. Power and Associates’ 2018 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 fourth in initial quality, above the industry average. With 8 more problems per 100 vehicles, BMW is ranked 11th.
J.D. Power and Associates’ 2018 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 27 more problems per 100 vehicles, BMW is ranked 8th.
The Panamera 4S’ standard 2.9 turbo V6 produces 105 more horsepower (440 vs. 335) and 75 lbs.-ft. more torque (405 vs. 330) than the 6 Series Gran Turismo’s 3.0 turbo 6 cyl. The Panamera GTS’ standard 4.0 turbo V8 produces 118 more horsepower (453 vs. 335) and 127 lbs.-ft. more torque (457 vs. 330) than the 6 Series Gran Turismo’s 3.0 turbo 6 cyl. The Panamera 4 E-Hybrid’s standard 2.9 turbo V6 hybrid produces 127 more horsepower (462 vs. 335) and 186 lbs.-ft. more torque (516 vs. 330) than the 6 Series Gran Turismo’s 3.0 turbo 6 cyl. The Panamera Turbo S E-Hybrid ’s standard 4.0 turbo V8 hybrid produces 345 more horsepower (680 vs. 335) and 296 lbs.-ft. more torque (626 vs. 330) than the 6 Series Gran Turismo’s 3.0 turbo 6 cyl.
On the EPA test cycle the Panamera Turbo S E-Hybrid Running on electricity gets better fuel mileage than the 6 Series Gran Turismo (48 city/51 hwy vs. 20 city/28 hwy).
On the EPA test cycle the Panamera 4S 4 Auto 2.9 twin turbo V6 gets better city fuel mileage than the 640i Gran Turismo (21 city/28 hwy vs. 20 city/28 hwy).
The Panamera 4 E-Hybrid can drive on battery power alone for up to 31 miles. The 6 Series Gran Turismo 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’s fuel efficiency. The 6 Series Gran Turismo 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 6 Series Gran Turismo (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 6 Series Gran Turismo (23.7 vs. 18 gallons).
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 6 Series Gran Turismo doesn’t offer an SMG or a conventional manual transmission.
The Panamera’s optional launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The 6 Series Gran Turismo doesn’t offer launch control.
For better stopping power the Panamera’s front brake rotors are larger than those on the 6 Series Gran Turismo:
6 Series Gran Turismo
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 6 Series Gran Turismo doesn’t offer ceramic brake rotors.
For better traction, the Panamera has larger standard tires than the 6 Series Gran Turismo (F:265/45R19 & R:295/40R19 vs. 245/45R19). The Panamera’s optional tires are larger than the largest tires available on the 6 Series Gran Turismo (F:275/40R20 & R:315/35R20 vs. F:245/35R20 & R:275/30R20).
The Panamera’s standard 295/40R19 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the 6 Series Gran Turismo’s standard 45 series tires.
For better ride, handling and brake cooling the Panamera offers optional 21-inch wheels. The 6 Series Gran Turismo’s largest wheels are only 20-inches.
For better handling and stability, the average track (width between the wheels) on the Panamera is 2.2 inches wider in the front and .2 inches wider in the rear than the track on the 6 Series Gran Turismo.
For better maneuverability, the Panamera’s turning circle is 2 feet tighter than the 6 Series Gran Turismo’s (39 feet vs. 41 feet). The Panamera Executive’s turning circle is .3 feet tighter than the 6 Series Gran Turismo’s (40.7 feet vs. 41 feet).
The Porsche Panamera may be more efficient, handle and accelerate better because it weighs up to about 450 pounds less than the BMW 6 Series Gran Turismo.
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 6 Series Gran Turismo doesn’t offer active noise cancellation.
Pressing a switch automatically lowers the Panamera’s rear seats, to make changing between passengers and cargo easier. The 6 Series Gran Turismo doesn’t offer automatic folding seats.
J.D. Power and Associates surveys of service recipients show that Porsche service is better than BMW. J.D. Power ranks Porsche second in service department satisfaction. With a 17% lower rating, BMW is ranked 8th.
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 6 Series Gran Turismo 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 6 Series Gran Turismo doesn’t offer a rear wiper.
A power rear sunshade is optional in the Panamera to help block heat and glare for the rear passengers. The 6 Series Gran Turismo doesn’t offer a rear sunshade.
Optional air conditioned front and rear seats keep the Panamera’s passengers comfortable and take the sting out of hot leather in summer. The 6 Series Gran Turismo doesn’t offer air-conditioned seats in the rear.
The Panamera 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 6 Series Gran Turismo doesn’t offer a house-current electrical outlet.
The Panamera is available in both rear-wheel drive and all-wheel drive configurations. The 6 Series Gran Turismo doesn’t offer a two-wheel drive configuration.
The Panamera will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the Panamera will retain 42.42% to 48.11% of its original price after five years, while the 6 Series Gran Turismo only retains 34.38%.
The Porsche Panamera outsold the BMW 6 Series by over two to one during 2018.
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