2018 Porsche 911 vs. 2018 Lexus LC Series

Detailed Review, Specifications & Comparison

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The 911 has a standard automatic post-collision braking system, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The LC 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.

The 911 offers all-wheel drive to maximize traction under poor conditions, especially in ice and snow. The LC Series doesn’t offer all-wheel drive.

Both the 911 and the LC 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 and blind spot warning systems.


The 911’s corrosion warranty is 6 years longer than the LC Series’ (12 vs. 6 years).


J.D. Power and Associates rated the 911 first among midsize premium sporty cars in their 2017 Initial Quality Study. The LC Series isn’t in the top three in its category.

J.D. Power and Associates’ 2017 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 third in initial quality, above the industry average. With 20 more problems per 100 vehicles, Lexus is ranked 15th, below the industry average.


The 911 has more powerful engines than the LC Series:




911 3.0 turbo 6 cyl.

370 HP

331 lbs.-ft.

911 S 3.0 turbo 6 cyl.

420 HP

368 lbs.-ft.

911 GTS 3.0 turbo 6 cyl.

450 HP

405 lbs.-ft.

911 GT3 Coupe 4.0 DOHC 6 cyl.

500 HP

339 lbs.-ft.

911 Turbo 3.8 turbo 6 cyl.

540 HP

523 lbs.-ft.

911 Turbo S 3.8 turbo 6 cyl.

580 HP

553 lbs.-ft.

911 Turbo S Executive 3.8 turbo 6 cyl.

607 HP

553 lbs.-ft.

911 GT2 RS 4.0 turbo 6 cyl.

700 HP

553 lbs.-ft.

LC 500h 3.5 DOHC V6 hybrid

354 HP


LC 500 5.0 DOHC V8

471 HP

398 lbs.-ft.

As tested in Motor Trend the 911 S is faster than the LC 500 (automatics tested):



LC Series

Zero to 60 MPH

3.1 sec

4.7 sec

Quarter Mile

11.5 sec

13 sec

Speed in 1/4 Mile

120.5 MPH

109.8 MPH

In a Motor Trend racecourse test, the Porsche 911 Turbo S Coupe was clocked 10.19 seconds faster than the Lexus LC 500 (93.21 sec. vs. 103.4 sec.).

The flat cylinder configuration of the boxer engine in the 911 lowers its center of gravity, enhancing handling stability. The LC Series doesn’t offer a boxer engine configuration.

Fuel Economy and Range

On the EPA test cycle the 911 Coupe RWD Auto gets better fuel mileage than the LC 500 (22 city/30 hwy vs. 16 city/26 hwy).

Regardless of its engine, regenerative brakes improve the 911’s fuel efficiency by converting inertia back into energy instead of wasting it. Lexus only offers a regenerative brake system on the LC Series Hybrid.

Regardless of its engine, the 911’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 LC Series Hybrid.

The 911 GT2 RS’ optional fuel tank has 1.6 gallons more fuel capacity than the LC Series Hybrid’s standard fuel tank (23.8 vs. 22.2 gallons).

Transmission and Drivetrain

The 911 offers a manual transmission for better acceleration, control and fuel economy. The LC Series doesn’t offer a manual transmission.

The 911 offers an optional 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 LC Series doesn’t offer an SMG.

All-wheel drive, available in the 911, provides the best traction for acceleration in wet, dry, and icy conditions. In corners, all-wheel drive allows both outside wheels to provide power, balancing the car. This allows for better handling. The Lexus LC Series is not available with all-wheel drive.

The 911 PDK’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 LC Series doesn’t offer launch control.

Brakes and Stopping

For better stopping power the 911’s brake rotors are larger than those on the LC Series:


911 S

911 Turbo

911 opt.

LC Series

Front Rotors

13.8 inches

15 inches

16.1 inches

13.3 inches

Rear Rotors

13 inches

15 inches

15.4 inches

12.1 inches

The 911 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 LC Series doesn’t offer ceramic brake rotors.

The 911 stops much shorter than the LC Series:



LC Series


70 to 0 MPH

139 feet

165 feet

Car and Driver

60 to 0 MPH

92 feet

113 feet

Motor Trend

Tires and Wheels

For better traction, the 911 GT2 RS Coupe’s tires are larger than the largest tires available on the LC Series (F:265/35R20 & R:325/30R21 vs. F:245/45R20 & R:275/40R20).

The 911’s standard 235/40R19 front and 295/35R19 rear tires provide better handling because they have a lower 40 series front and 35 series rear profile (height to width ratio) that provides a stiffer sidewall than the LC Series’ standard 45 series front and 40 series rear tires. The 911’s optional 245/35R20 front and 305/30R20 rear tires have a lower 35 series front and 30 series rear profile than the LC Series’ optional 40 series front and 35 series rear tires.

Suspension and Handling

The 911 offers active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The LC Series doesn’t offer an active sway bar system.

The 911 has a standard driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads. The LC Series’ suspension doesn’t offer adjustable shock absorbers.

The 911 has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The LC Series doesn’t offer a load leveling suspension.

The 911 GT3 Coupe handles at 1.11 G’s, while the LC 500h pulls only .91 G’s of cornering force in a Car and Driver skidpad test.

The 911 Turbo S Coupe executes Motor Trend’s “Figure Eight” maneuver 3.2 seconds quicker than the LC 500h (22.9 seconds @ .96 average G’s vs. 26.1 seconds @ .69 average G’s).

For better maneuverability, the 911 GT2 RS Coupe’s turning circle is 1.8 feet tighter than the LC Series’ (33.6 feet vs. 35.4 feet).


The Porsche 911 may be more efficient, handle and accelerate better because it weighs about 750 to 1150 pounds less than the Lexus LC Series.

The 911 is 10.3 inches shorter than the LC Series, making the 911 easier to handle, maneuver and park in tight spaces.

The front grille of the 911 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The LC Series doesn’t offer active grille shutters.

As tested by Car and Driver while under full throttle, the interior of the 911 Turbo S Coupe is quieter than the LC 500h (82 vs. 83 dB).

Passenger Space

The 911 Coupe has .8 inches more front headroom and 3.8 inches more front legroom than the LC Series.

Cargo Capacity

A low lift-over trunk design makes loading and unloading the 911 easier. The 911’s trunk lift-over height is 24.3 inches, while the LC Series’ liftover is 33.6 inches.

The 911’s standard rear seats fold to accommodate long and bulky cargo. The LC 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.


The 911’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 LC Series does not have an oil pressure gauge.

To improve rear visibility by keeping the rear window clear, the 911 offers an optional rear wiper. The LC Series 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 911 offers available headlight washers to keep headlight output high. The LC Series doesn’t offer headlight washers.

To help drivers see further while navigating curves, the 911 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The LC Series doesn’t offer cornering lights.

When the 911 is put in reverse, the passenger rearview mirror tilts from its original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirror into its original position. The LC Series’ mirror doesn’t automatically adjust for backing.

Model Availability

The Porsche 911 comes in coupe and convertible bodystyles; the Lexus LC Series isn’t available as a convertible.


Consumer Reports® recommends the Porsche 911, based on reliability, safety and performance.

Motor Trend performed a comparison test in its November 2017 issue and they ranked the Porsche 911 Turbo S Coupe five places higher than the Lexus LC 500.

The Porsche 911 outsold the Lexus LC Series by almost four to one during 2017.

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

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