2019 Buick LaCrosse vs. 2019 Genesis G80

Detailed Review, Specifications & Comparison

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In the past twenty years hundreds of infants and young children have died after being left in vehicles, usually by accident. When turning the vehicle off, drivers of the LaCrosse are reminded to check the back seat if they opened the rear door before starting out. The G80 doesn’t offer a back seat reminder.

Both the LaCrosse and the G80 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver 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 all wheel drive, crash mitigating brakes, lane departure warning systems, blind spot warning systems, front parking sensors and rear cross-path warning.

The National Highway Traffic Safety Administration does 35 MPH front crash tests on new vehicles. In this test, results indicate that the Buick LaCrosse is safer than the Genesis G80:







5 Stars

5 Stars

Neck Compression

21 lbs.

22 lbs.

Leg Forces (l/r)

169/229 lbs.

268/514 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.

The National Highway Traffic Safety Administration does side impact tests on new vehicles. In this test, which crashes the vehicle into a flat barrier at 38.5 MPH and into a post at 20 MPH, results indicate that the Buick LaCrosse is safer than the Genesis G80:





Front Seat


4 Stars

4 Stars

Chest Movement

1.3 inches

1.3 inches


Into Pole


5 Stars

5 Stars




Spine Acceleration

30 G’s

40 G’s

Hip Force

653 lbs.

857 lbs.

New test not comparable to pre-2011 test results. More stars = Better. Lower test results = Better.


There are almost 6 times as many Buick dealers as there are Genesis dealers, which makes it much easier should you ever need service under the LaCrosse’s warranty.


The LaCrosse has a standard “limp home system” to keep drivers from being stranded if most or all of the engine’s coolant is lost. The engine will run on only half of its cylinders at a time, reduce its power and light a warning lamp on the dashboard so the driver can get to a service station for repairs. The G80 doesn’t offer a lost coolant limp home mode, so a coolant leak could strand you or seriously damage the car’s engine.


As tested in Motor Trend the Buick LaCrosse V6 is faster than the G80 3.8 DOHC V6:




Zero to 60 MPH

6.1 sec

6.3 sec

Speed in 1/4 Mile

97.9 MPH

97 MPH

Fuel Economy and Range

On the EPA test cycle the LaCrosse with its standard engine FWD gets better fuel mileage than the G80 3.8 with its standard engine RWD (25 city/35 hwy vs. 18 city/26 hwy).

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







3.6 V6/9-spd. Auto

20 city/30 hwy

18 city/26 hwy

3.8 V6/Auto


3.6 V6/9-spd. Auto

20 city/29 hwy

18 city/24 hwy

3.8 V6/Auto

An engine control system that can shut down half of the engine’s cylinders helps improve the LaCrosse V6’s fuel efficiency. The G80 doesn’t offer a system that can shut down part of the engine.

Regenerative brakes improve the LaCrosse eAssist’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 LaCrosse’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.

To lower fuel costs and make buying fuel easier, the Buick LaCrosse uses regular unleaded gasoline. The G80 3.3T Sport requires premium for maximum efficiency, which can cost 20 to 55 cents more per gallon.

The LaCrosse has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The G80 doesn’t offer a cap-less fueling system.

Environmental Friendliness

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Buick LaCrosse higher (5 out of 10) than the Genesis G80 (3 to 5). This means the LaCrosse produces up to 16.5 pounds less smog-producing pollutants than the G80 every 15,000 miles.


A nine-speed automatic is standard on the Buick LaCrosse V6, for better acceleration and lower engine speed on the highway. Only an eight-speed automatic is available for the G80.

Brakes and Stopping

The LaCrosse stops much shorter than the G80:





70 to 0 MPH

170 feet

180 feet

Car and Driver

Tires and Wheels

For better ride, handling and brake cooling the LaCrosse Essence/Premium/Avenir offers optional 20-inch wheels. The G80’s largest wheels are only 19-inches.


The Buick LaCrosse may be more efficient, handle and accelerate better because it weighs about 700 to 900 pounds less than the Genesis G80.

The front grille of the LaCrosse uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The G80 doesn’t offer active grille shutters.

The LaCrosse 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.

As tested by Car and Driver while cruising at 70 MPH, the interior of the LaCrosse Premium is quieter than the G80 5.0 (68 vs. 70 dB).

Passenger Space

The LaCrosse has 3 inches more rear legroom and .3 inches more rear hip room than the G80.

Cargo Capacity

The LaCrosse’s standard rear seats fold to accommodate long and bulky cargo. The G80 doesn’t offer folding rear seats, only a ski pass-through.


The LaCrosse has a 1000 lbs. towing capacity. The G80 has no towing capacity.


Standard air conditioned seats in the LaCrosse Premium/Avenir keep the driver and front passenger comfortable and take the sting out of hot seats in summer. The G80 only offers an air-conditioned driver’s seat.

The LaCrosse Premium/Avenir has a 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 LaCrosse Premium/Avenir’s optional Automatic Park Assist can parallel park or back into a parking spot by itself, with the driver only controlling speed with the brake pedal. The G80 doesn’t offer an automated parking system.

Economic Advantages

Insurance will cost less for the LaCrosse owner. The Complete Car Cost Guide estimates that insurance for the LaCrosse will cost $200 to $7025 less than the G80 over a five-year period.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Buick LaCrosse will be $8687 to $19488 less than for the Genesis G80.


The Buick LaCrosse outsold the Genesis G80 by over two to one during 2018.

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

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