2019 Lexus LS Series vs. 2019 Genesis G80

Detailed Review, Specifications & Comparison

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The LS Series has standard Secondary Collision Brake, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The G80 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.

Over 200 people are killed each year when backed over by motor vehicles. The LS Series has a standard Auto-Stop that use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The G80 doesn’t offer backup collision prevention brakes.

The LS Series offers an optional Panoramic View Camera to allow the driver to see objects all around the vehicle on a screen. The G80 only offers a rear monitor and front and rear parking sensors that beep or flash a light. That doesn’t help with obstacles to the sides.

Both the LS Series and the G80 have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available all wheel drive.


From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Lexus vehicles are more reliable than Genesis vehicles. Consumer Reports ranks Lexus first in reliability. Genesis is ranked 12th.


The LS Series has more powerful engines than the G80:




LS 500h 3.5 DOHC V6 hybrid

354 HP


LS 500 3.4 turbo V6

416 HP

442 lbs.-ft.

G80 3.8 DOHC V6

311 HP

293 lbs.-ft.

G80 3.3T Sport 3.3 turbo V6

365 HP

376 lbs.-ft.

G80 5.0 DOHC V8

420 HP

383 lbs.-ft.

As tested in Motor Trend the LS 500h is faster than the G80 3.8:


LS Series


Zero to 60 MPH

5.5 sec

6.3 sec

Quarter Mile

14.1 sec

14.6 sec

Speed in 1/4 Mile

98 MPH

97 MPH

Fuel Economy and Range

On the EPA test cycle the LS Series gets better fuel mileage than the G80:





LS Series



500h 3.5 V6 Hybrid

25 city/33 hwy



500 3.4 turbo V6

19 city/30 hwy



500h 3.5 V6 Hybrid

23 city/31 hwy



500 3.4 turbo V6

18 city/27 hwy




3.8 DOHC V6

18 city/26 hwy



3.3 turbo V6

17 city/25 hwy



5.0 DOHC V8

16 city/24 hwy



3.8 DOHC V6

18 city/24 hwy



3.3 turbo V6

17 city/24 hwy



5.0 DOHC V8

15 city/23 hwy

Regenerative brakes improve the LS Series Hybrid’s fuel efficiency by converting inertia back into energy instead of wasting it. The G80 doesn’t offer a regenerative braking system.

In heavy traffic or at stoplights the LS Series Hybrid’s engine automatically turns off when the vehicle is stopped, saving fuel and reducing pollution. The engine is automatically restarted when the driver gets ready to move again. (Start/Stop isn’t accounted in present EPA fuel mileage tests.) The G80 doesn’t offer an automatic engine start/stop system.

The LS Series’ standard fuel tank has 1.4 gallons more fuel capacity than the G80 (21.7 vs. 20.3 gallons), for longer range between fill-ups. The LS Series Hybrid’s standard fuel tank has 1.9 gallons more fuel capacity than the G80 (22.2 vs. 20.3 gallons).


A 10-speed automatic is standard on the Lexus LS Series, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the G80.

The LS 500h has a standard continuously variable transmission (CVT). With no “steps” between gears, it can keep the engine at the most efficient speed for fuel economy, or keep it at its peak horsepower indefinitely for maximum acceleration. The G80 doesn’t offer a CVT.

Brakes and Stopping

For better stopping power the LS Series’ brake rotors are larger than those on the G80:


LS Series

LS Series F-Sport

G80 3.8

G80 3.3T Sport

Front Rotors

14 inches

15.7 inches

13.6 inches

14.2 inches

Rear Rotors

13.1 inches

14.1 inches

12.4 inches

13 inches

The LS Series’ standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the G80 3.8 are solid, not vented.

The LS Series stops much shorter than the G80:


LS Series



70 to 0 MPH

170 feet

180 feet

Car and Driver

60 to 0 MPH

113 feet

116 feet

Motor Trend

Tires and Wheels

For better ride, handling and brake cooling the LS Series has standard 19-inch wheels. Smaller 18-inch wheels are standard on the G80 3.8. The LS Series’ optional 20-inch wheels are larger than the 19-inch wheels optional on the G80.

Changing a flat tire near traffic can be dangerous and inconvenient. The run-flat tires standard on the LS Series can be driven up to 50 miles without any air pressure, allowing you to drive to a service station for a repair. The G80 doesn’t offer run-flat tires.

Suspension and Handling

The LS Series F-Sport 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 G80 doesn’t offer an active sway bar system.

The LS Series has a standard automatic front and rear load leveling suspension to keep ride height level with a heavy load or when towing. The LS Series’ height leveling suspension allows the driver to raise ride height for better off-road clearance and then lower it again for easier entering and exiting and better on-road handling. The G80 doesn’t offer a load leveling suspension.

For a smoother ride and more stable handling, the LS Series’ wheelbase is 4.5 inches longer than on the G80 (123 inches vs. 118.5 inches).

The LS 500 handles at .88 G’s, while the G80 AWD pulls only .84 G’s of cornering force in a Car and Driver skidpad test.

The LS 500 AWD executes Motor Trend’s “Figure Eight” maneuver 1 seconds quicker than the G80 5.0 (25.7 seconds @ .73 average G’s vs. 26.7 seconds @ .7 average G’s).


The LS Series uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The G80 doesn’t offer active noise cancellation.

Passenger Space

The LS Series has .5 inches more front shoulder room, 3.9 inches more rear legroom and .3 inches more rear hip room than the G80.

For enhanced passenger comfort on long trips the LS Series’ available rear seats recline. The G80’s rear seats don’t recline.

Cargo Capacity

The LS Series has a much larger trunk than the G80 (17 vs. 15.3 cubic feet).


Unlike the driver-only memory system in the G80, the LS Series has standard driver and passenger memory, so that when drivers switch, the memory setting adjusts the driver’s seat, steering wheel position, outside mirror angle and climate settings and the front passenger seat also adjusts to the new passenger’s preset preferences.

The LS Series’ standard easy entry system raises the steering wheel and glides the driver’s seat back, making it easier for the driver to get in and out. An easy entry system costs extra on the G80.

If the windows are left open on the LS Series the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or from a distance using the keyless remote. (This window function must be activated by your Lexus service department.) The driver of the G80 can only operate the windows from inside the vehicle, with the ignition on.

Consumer Reports rated the LS Series’ headlight performance “Very Good,” a higher rating than the G80’s headlights, which were rated “Poor.”

The LS Series has standard front air conditioned seats and offers them optionally in the rear. This keeps the passengers comfortable and takes the sting out of hot seats in summer. The G80 only offers an air-conditioned driver’s seat.

The LS Series 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 G80 doesn’t offer a house-current electrical outlet.


The Lexus LS Series outsold the Genesis G80 by 21% during 2018.

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

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