2019 Genesis G80 vs. 2019 Acura TLX

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Genesis G80 have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Acura TLX doesn’t offer pretensioners for the rear seat belts.

For enhanced safety, the front and rear seat shoulder belts of the Genesis G80 are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The Acura TLX has only front height-adjustable seat belts.

The G80 has standard Anti-Whiplash Front Head Restraints, which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the Anti-Whiplash Front Head Restraints system moves the headrests forward to prevent neck and spine injuries. The TLX doesn’t offer a whiplash protection system.

The G80’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The TLX doesn’t offer a driver alert monitor.

Both the G80 and the TLX have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, 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, rearview cameras, available all wheel drive and rear parking sensors.

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 Genesis G80 is safer than the TLX:

 

G80

TLX

Overall Evaluation

GOOD

ACCEPTABLE

Restraints

GOOD

ACCEPTABLE

Head Neck Evaluation

GOOD

GOOD

Head injury index

106

250

Peak Head Forces

0 G’s

0 G’s

Chest Evaluation

GOOD

GOOD

Max Chest Compression

20 cm

23 cm

Hip & Thigh Evaluation

GOOD

GOOD

Femur Force R/L

.4/.5 kN

1.6/2.1 kN

Hip & Thigh Injury Risk R/L

0%/0%

0%/0%

Lower Leg Evaluation

GOOD

MARGINAL

Tibia index R/L

.54/.31

1.15/.91

Tibia forces R/L

2/1.1 kN

4.4/5 kN

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 Genesis G80 is safer than the Acura TLX:

 

G80

TLX

 

Rear Seat

STARS

5 Stars

5 Stars

HIC

88

229

Spine Acceleration

31 G’s

57 G’s

Hip Force

394 lbs.

483 lbs.

 

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

10 inches

14 inches

HIC

230

249

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

For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, with its optional front crash prevention system, its “Good” rating in the new passenger-side small overlap crash test, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the G80 its highest rating: “Top Pick Plus” for 2018, a rating granted to only 28 vehicles tested by the IIHS. The TLX was not even a standard “Top Pick” for 2018.

Warranty

The G80 comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes free 24-hour roadside assistance. The TLX’s 4-year/50,000-mile basic warranty expires 1 year and 10,000 miles sooner.

Genesis’ powertrain warranty covers the G80 4 years and 30,000 miles longer than Acura covers the TLX. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the TLX ends after only 6 years or 70,000 miles.

The G80’s corrosion warranty is 2 years longer than the TLX’s (7 vs. 5 years).

Genesis pays for scheduled maintenance on the G80 for 3 years and 36,000 miles. Genesis will pay for oil changes, lubrication and any other required maintenance. Acura doesn’t pay scheduled maintenance for the TLX.

There are over 30 percent more Genesis dealers than there are Acura dealers, which makes it easier should you ever need service under the G80’s warranty.

Reliability

To reliably start during all conditions and help handle large electrical loads, the G80 has a standard 740-amp battery. The TLX’s 650-amp battery isn’t as powerful.

The battery on the G80 is in the trunk, which protects it from hot underhood temperatures that can degrade battery life. By keeping the G80’s battery 20 to 30 degrees cooler, its life is increased by years. The TLX’s battery is in the hot engine compartment.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the G80’s reliability 35 points higher than the TLX.

J.D. Power and Associates rated the G80 second among midsize premium cars in their 2018 Initial Quality Study. The TLX isn’t in the top three in its category.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that Genesis vehicles are better in initial quality than Acura vehicles. J.D. Power ranks Genesis first in initial quality, above the industry average. With 31 more problems per 100 vehicles, Acura is ranked 20th, below the industry average.

Engine

The G80 has more powerful engines than the TLX:

 

Horsepower

Torque

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.

TLX 2.4 DOHC 4 cyl.

206 HP

182 lbs.-ft.

TLX 3.5 SOHC V6

290 HP

267 lbs.-ft.

As tested in Motor Trend the G80 3.8 is faster than the Acura TLX 4 cyl.:

 

G80

TLX

Zero to 60 MPH

6.3 sec

7.2 sec

Quarter Mile

14.6 sec

15.6 sec

Speed in 1/4 Mile

97 MPH

91.1 MPH

Fuel Economy and Range

The G80 has 3.1 gallons more fuel capacity than the TLX (20.3 vs. 17.2 gallons), for longer range between fill-ups.

Brakes and Stopping

For better stopping power the G80’s brake rotors are larger than those on the TLX:

 

G80 3.8

G80 3.3T

TLX

Front Rotors

13.6 inches

14.2 inches

12.6 inches

Rear Rotors

12.4 inches

13 inches

12.2 inches

The G80 3.3T Sport’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the TLX are solid, not vented.

The G80 stops much shorter than the TLX:

 

G80

TLX

 

70 to 0 MPH

167 feet

179 feet

Car and Driver

60 to 0 MPH

114 feet

124 feet

Motor Trend

Tires and Wheels

For better traction, the G80 has larger standard tires than the TLX (245/45R18 vs. 225/55R17).

The G80 3.8’s standard tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the TLX’s standard 55 series tires. The G80’s optional 275/35R19 rear tires have a lower 35 series profile than the TLX A-Spec’s 40 series tires.

For better ride, handling and brake cooling the G80 3.8 has standard 18-inch wheels. Smaller 17-inch wheels are standard on the TLX.

Suspension and Handling

The G80 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 TLX’s suspension doesn’t offer adjustable shock absorbers.

For a smoother ride and more stable handling, the G80’s wheelbase is 9.2 inches longer than on the TLX (118.5 inches vs. 109.3 inches).

For better handling and stability, the average track (width between the wheels) on the G80 is 1.1 inches wider in the front and 1.7 inches wider in the rear than the track on the TLX.

The G80 5.0 handles at .88 G’s, while the TLX V6 SH-AWD pulls only .82 G’s of cornering force in a Motor Trend skidpad test.

The G80 3.8 AWD executes Motor Trend’s “Figure Eight” maneuver quicker than the TLX (26.2 seconds @ .69 average G’s vs. 27 seconds @ .74 average G’s).

For better maneuverability, the G80’s turning circle is 2.6 feet tighter than the TLX V6’s (36.2 feet vs. 38.8 feet). The G80’s turning circle is 2.1 feet tighter than the TLX SH-AWD’s (37.4 feet vs. 39.5 feet).

Chassis

As tested by Car and Driver while at idle, the interior of the G80 5.0 is quieter than the TLX (39 vs. 42 dB).

Passenger Space

Because it has more passenger and cargo room, the EPA rates the G80 a Large car, while the TLX is rated a Compact.

The G80 has 14.4 cubic feet more passenger volume than the TLX (107.7 vs. 93.3).

The G80 has 3.9 inches more front headroom, 3.1 inches more front legroom, .4 inches more front hip room, .8 inches more front shoulder room, 1.5 inches more rear headroom, .5 inches more rear legroom and 1.7 inches more rear shoulder room than the TLX.

Cargo Capacity

The G80 has a larger trunk than the TLX (15.3 vs. 14.3 cubic feet).

To make loading and unloading groceries and cargo easier when your hands are full, just waiting momentarily behind the back bumper can open the G80’s trunk, leaving your hands completely free. The G80 also offers an optional power trunk, which opens and closes automatically by pressing a button. The TLX doesn’t offer a power or hands-free opening trunk.

Servicing Ease

The engine in the G80 is mounted longitudinally (North-South), instead of sideways, as in the TLX. This makes it easier to service and maintain, because there are no rear spark plugs and the accessory belts are in front.

Ergonomics

The G80 offers an optional 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 TLX doesn’t offer a heads-up display.

The power windows standard on both the G80 and the TLX have locks to prevent small children from operating them. When the lock on the G80 is engaged the driver can still operate all of the windows, for instance to close one opened by a child. The TLX prevents the driver from operating the other windows just as it does the other passengers.

The G80’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The TLX’s standard intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The G80 3.8 AWD offers available headlight washers to keep headlight output high. The TLX doesn’t offer headlight washers.

To help drivers see further while navigating curves, the G80 offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The TLX doesn’t offer cornering lights.

A power rear sunshade is optional in the G80 to help block heat and glare for the rear passengers. The TLX doesn’t offer a rear sunshade.

Economic Advantages

Insurance will cost less for the G80 owner. The Car Book by Jack Gillis rates the G80 with a number “” insurance rate while the TLX is rated higher at a number “10” rate.

Recommendations

Consumer Reports® recommends the Genesis G80, based on reliability, safety and performance.

Motor Trend performed a comparison test in its January 2015 issue and they ranked the Genesis G80 3.8 AWD higher than the Acura TLX.

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

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