SONS Automotive Group Compares 2019 Buick LACROSSE VS 2019 Chrysler 300 Near Braselton, GA

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2019 Buick LACROSSE

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2019 Buick LACROSSE

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2019 Chrysler 300

Safety Comparison

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 300 doesn’t offer a back seat reminder.

Both the LaCrosse and the 300 have standard driver and passenger frontal airbags, front 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.

A significantly tougher test than their original offset frontal crash test, the Insurance Institute for Highway Safety does 40 MPH small overlap frontal offset crash tests. In this test, where only 25% of the total width of the vehicle is struck, results indicate that the Buick LaCrosse is safer than the 300:




Overall Evaluation






Head Neck Evaluation



Head injury index



Peak Head Forces

0 G’s

0 G’s

Steering Column Movement Rearward

3 cm

9 cm

Chest Evaluation



Max Chest Compression

16 cm

28 cm

Hip & Thigh Evaluation



Femur Force R/L

.5/.3 kN

3.7/3 kN

Hip & Thigh Injury Risk R/L



Lower Leg Evaluation



Tibia index R/L



Tibia forces R/L

2.1/.9 kN

3/4.7 kN

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the LaCrosse the rating of “Top Pick” for 2017, a rating granted to only 139 vehicles tested by the IIHS. The 300 was not even a “Top Pick” for 2016.

Warranty Comparison

The LaCrosse comes with a full 4-year/50,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The 300’s 3-year/36,000-mile basic warranty expires 1 year and 14,000 miles sooner.

Buick’s powertrain warranty covers the LaCrosse 1 year and 10,000 miles longer than Chrysler covers the 300. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the 300 ends after only 5 years or 60,000 miles.

The LaCrosse’s corrosion warranty is 1 year and unlimited miles longer than the 300’s (6/unlimited vs. 5/100,000).

Buick pays for scheduled maintenance on the LaCrosse for 2 years and 24,000 miles. Buick will pay for oil changes, lubrication and any other required maintenance (up to 2 oil changes). Chrysler doesn’t pay scheduled maintenance for the 300.

Reliability Comparison

For smoother operation, better efficiency and fewer moving parts, the engines in the LaCrosse have an overhead cam design, rather than the old pushrod design of the 5.7 V8 in the 300.

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 300 doesn’t offer a lost coolant limp home mode, so a coolant leak could strand you or seriously damage the car’s engine.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Buick vehicles are better in initial quality than Chrysler vehicles. J.D. Power ranks Buick 16th in initial quality. With 16 more problems per 100 vehicles, Chrysler is ranked 26th.

J.D. Power and Associates’ 2018 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Buick vehicles are more reliable than Chrysler vehicles. J.D. Power ranks Buick third in reliability, above the industry average. With 95 more problems per 100 vehicles, Chrysler is ranked 31st.

From surveys of all its subscribers, Consumer Reports’ April 2018 Auto Issue reports that Buick vehicles are more reliable than Chrysler vehicles. Consumer Reports ranks Buick 9 places higher in reliability than Chrysler.

Engine Comparison

As tested in Motor Trend the Buick LaCrosse V6 is faster than the 300S 3.6 DOHC V6:




Zero to 60 MPH

6.1 sec

6.4 sec

Quarter Mile

14.6 sec

14.9 sec

Speed in 1/4 Mile

97.9 MPH

97.1 MPH

Fuel Economy and Range Comparison

On the EPA test cycle the LaCrosse with its standard engine FWD gets better fuel mileage than the 300 with its standard engine RWD (25 city/35 hwy vs. 19 city/30 hwy).

On the EPA test cycle the LaCrosse gets better fuel mileage than the 300:







3.6 V6/9-spd. Auto

20 city/30 hwy

19 city/30 hwy

3.6 V6/Auto


3.6 V6/9-spd. Auto

20 city/29 hwy

18 city/27 hwy

3.6 V6/Auto

Regenerative brakes improve the LaCrosse eAssist’s fuel efficiency by converting inertia back into energy instead of wasting it. The 300 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 300 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 300 with the 5.7 V8 engine requires mid-grade for maximum efficiency, which can cost 5 to 40 cents more per gallon.

Brakes and Stopping Comparison

The LaCrosse stops shorter than the 300:





70 to 0 MPH

170 feet

175 feet

Car and Driver

Tires and Wheels Comparison

For better traction, the LaCrosse has larger standard tires than the 300 (235/50R18 vs. 215/65R17).

The LaCrosse’s standard tires provide better handling because they have a lower 50 series profile (height to width ratio) that provides a stiffer sidewall than the 300 Touring’s standard 65 series tires. The LaCrosse Essence/Premium/Avenir’s optional tires have a lower 40 series profile than the 300S/300C/Limited’s 45 series tires.

For better ride, handling and brake cooling the LaCrosse has standard 18-inch wheels. Smaller 17-inch wheels are standard on the 300 Touring.

Suspension and Handling Comparison

The LaCrosse offers an available 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 300’s suspension doesn’t offer adjustable shock absorbers.

The LaCrosse Premium handles at .84 G’s, while the 300 Limited pulls only .82 G’s of cornering force in a Car and Driver skidpad test.

The LaCrosse Premium executes Motor Trend’s “Figure Eight” maneuver quicker than the 300 (26.8 seconds vs. 27.2 seconds).

For better maneuverability, the LaCrosse’s turning circle is .7 feet tighter than the 300’s (38 feet vs. 38.7 feet).

Chassis Comparison

The Buick LaCrosse may be more efficient, handle and accelerate better because it weighs about 500 to 550 pounds less than the Chrysler 300.

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 300 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 300 doesn’t offer active noise cancellation.

As tested by Car and Driver, the interior of the LaCrosse Premium is quieter than the 300S:




At idle

39 dB

39 dB


75 dB

80 dB

70 MPH Cruising

68 dB

69 dB

Cargo Capacity Comparison

With its sedan body style, locking rear seatbacks and remote trunk release lockout, the LaCrosse offers cargo security. The 300’s non-lockable folding seat and non-lockable remote release defeat cargo security.

Ergonomics Comparison

The LaCrosse Premium/Avenir has a standard heads-up display that projects speed and other key instrumentation readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The 300 doesn’t offer a heads-up display.

The LaCrosse’s front and rear power windows all lower with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The 300’s rear power window switches have to be held the entire time to open them fully.

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 300 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 300 doesn’t offer an automated parking system.

Economic Advantages Comparison

According to The Car Book by Jack Gillis, the LaCrosse is less expensive to operate than the 300 because typical repairs cost much less on the LaCrosse than the 300, including $1662 less for a muffler, $24 less for fuel injection, $105 less for front struts and $130 less for a power steering pump.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Buick LaCrosse will be $401 to $653 less than for the Chrysler 300.

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