2019 Porsche Panamera vs. 2019 Lexus LS Series

Detailed Review, Specifications & Comparison

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Safety

Both the Panamera and LS Series 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 LS 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 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 LS Series doesn’t offer a whiplash protection system.

A passive infrared night vision system optional on the Panamera helps the driver to more easily detect people, animals or other objects in front of the vehicle at night. Using an infrared camera to detect heat, the system then displays the image on a monitor in the dashboard and even aims one of the vehicle’s headlights in the direction of the person or object. The LS Series doesn’t offer a night vision system.

Both the Panamera and the LS 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, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available crash mitigating brakes, lane departure warning systems, blind spot warning systems and around view monitors.

Warranty

The Panamera’s corrosion warranty is 6 years longer than the LS Series’ (12 vs. 6 years).

Reliability

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 Lexus vehicles. J.D. Power ranks Porsche fourth in initial quality, above the industry average. With 5 more problems per 100 vehicles, Lexus is ranked 8th.

Engine

The Panamera has more powerful engines than the LS Series:

 

Horsepower

Torque

Panamera 3.0 turbo V6

330 HP

331 lbs.-ft.

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

462 HP

516 lbs.-ft.

Panamera Turbo 4.0 turbo V8

550 HP

567 lbs.-ft.

Panamera Turbo S E-Hybrid 4.0 turbo V8

680 HP

626 lbs.-ft.

LS 500h 3.5 DOHC V6 hybrid

354 HP

n/a

LS 500 3.4 turbo V6

416 HP

442 lbs.-ft.

As tested in Car and Driver the Porsche Panamera turbo V6 is faster than the LS 500 3.4 turbo V6:

 

Panamera

LS Series

Zero to 60 MPH

4.7 sec

5.1 sec

Zero to 100 MPH

11.6 sec

12.7 sec

5 to 60 MPH Rolling Start

5.5 sec

6.3 sec

Quarter Mile

13.3 sec

13.7 sec

Speed in 1/4 Mile

107 MPH

104 MPH

Fuel Economy and Range

On the EPA test cycle the Panamera Turbo S E-Hybrid Running on electricity gets better fuel mileage than the LS 500h AWD CVT (48 city/51 hwy vs. 23 city/31 hwy).

On the EPA test cycle the Panamera 4S 4 Auto 2.9 twin turbo V6 gets better fuel mileage than the LS 500 AWD (21 city/28 hwy vs. 18 city/27 hwy).

The Panamera 4 E-Hybrid can drive on battery power alone for up to 31 miles. The LS Series 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 LS Series doesn’t offer a system that can shut down part of the engine.

Regardless of its engine, regenerative brakes improve the Panamera’s fuel efficiency by converting inertia back into energy instead of wasting it. Lexus only offers a regenerative brake system on the LS Series Hybrid.

Regardless of its engine, the Panamera’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.) Lexus only offers an automatic engine start/stop system on the LS Series Hybrid.

The Panamera’s standard fuel tank has 1.5 gallons more fuel capacity than the LS Series Hybrid’s standard fuel tank (23.7 vs. 22.2 gallons).

Transmission

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 LS Series 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 LS Series doesn’t offer launch control.

Brakes and Stopping

For better stopping power the Panamera’s front brake rotors are larger than those on the LS Series:

 

Panamera

LS Series

LS Series F-Sport

Front Rotors

16.5 inches

14 inches

15.7 inches

Rear Rotors

16.1 inches

13.1 inches

14.1 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 LS Series doesn’t offer ceramic brake rotors.

The Panamera stops much shorter than the LS Series:

 

Panamera

LS Series

 

70 to 0 MPH

153 feet

170 feet

Car and Driver

60 to 0 MPH

101 feet

123 feet

Motor Trend

Tires and Wheels

For better traction, the Panamera has larger standard tires than the LS Series (F:265/45R19 & R:295/40R19 vs. 245/50R19). The Panamera’s optional tires are larger than the largest tires available on the LS Series (F:275/40R20 & R:315/35R20 vs. F:245/45R20 & R:275/40R20).

The Panamera’s standard 265/45R19 front and 295/40R19 rear tires provide better handling because they have a lower 45 series front and 40 series rear profile (height to width ratio) that provides a stiffer sidewall than the LS Series’ standard 50 series tires. The Panamera’s optional 275/35R21 front and 315/30R21 rear tires have a lower 35 series front and 30 series rear profile than the LS Series F Sport’s 45 series front and 40 series rear tires.

For better ride, handling and brake cooling the Panamera offers optional 21-inch wheels. The LS Series’ largest wheels are only 20-inches.

Suspension and Handling

The Panamera offers an available adjustable active suspension system, which counteracts cornering forces actively, limiting body roll and improving handling and stability. Lexus doesn’t offer an active suspension on the LS Series.

For better handling and stability, the average track (width between the wheels) on the Panamera is 1.2 inches wider in the front and .6 inches wider in the rear than the average track on the LS Series.

The Panamera 4S handles at 1.01 G’s, while the LS 500h AWD pulls only .80 G’s of cornering force in a Motor Trend skidpad test.

The Panamera Turbo executes Motor Trend’s “Figure Eight” maneuver 3.1 seconds quicker than the LS 500h AWD (23.9 seconds @ .86 average G’s vs. 27 seconds @ .65 average G’s).

Chassis

The Porsche Panamera may be more efficient, handle and accelerate better because it weighs up to about 700 pounds less than the Lexus LS Series.

The Panamera is 7.3 inches shorter than the LS Series, making the Panamera easier to handle, maneuver and park in tight spaces. The Panamera Executive is 1.4 inches shorter than the LS Series.

The front grille of the Panamera uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The LS Series doesn’t offer active grille shutters.

Passenger Space

Because it has more passenger and cargo room, the EPA rates the Panamera 4dr Hatchback a Large car, while the LS Series is rated a Mid-size.

The Panamera has 8.6 cubic feet more passenger volume than the LS Series (108 vs. 99.4).

Cargo Capacity

The Panamera has a larger trunk with its rear seat up than the LS Series (17.6 vs. 17 cubic feet).

The Panamera 4dr Hatchback has a larger trunk with its rear seat up than the LS Series (18.3 vs. 17 cubic feet).

The Panamera’s available rear seats fold to accommodate long and bulky cargo. The LS Series doesn’t offer folding rear seats.

Servicing Ease

J.D. Power and Associates surveys of service recipients show that Porsche service is better than Lexus. J.D. Power ranks Porsche second in service department satisfaction. With a 3% lower rating, Lexus is ranked third.

Ergonomics

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 LS Series 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 LS Series doesn’t offer a rear wiper.

Model Availability

The Porsche Panamera comes in four door hatchback and station wagon bodystyles; the Lexus LS Series isn’t available as a station wagon.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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