2020 Genesis G80 vs. 2020 Acura RLX

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/12

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 RLX has only front height-adjustable seat belts.

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 RLX doesn’t offer a driver alert monitor.

Both the G80 and the RLX 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, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive and around view monitors.

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

G80

RLX

Driver

STARS

5 Stars

5 Stars

HIC

97

252

Neck Injury Risk

21%

25%

Neck Stress

189 lbs.

222 lbs.

Neck Compression

22 lbs.

67 lbs.

Passenger

STARS

5 Stars

5 Stars

HIC

180

248

Chest Compression

.4 inches

.6 inches

Neck Stress

129 lbs.

163 lbs.

Neck Compression

44 lbs.

67 lbs.

Leg Forces (l/r)

147/55 lbs.

318/533 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 Genesis G80 is safer than the Acura RLX:

G80

RLX

Rear Seat

STARS

5 Stars

5 Stars

HIC

88

217

Spine Acceleration

31 G’s

66 G’s

Hip Force

394 lbs.

901 lbs.

Into Pole

STARS

5 Stars

5 Stars

Max Damage Depth

10 inches

14 inches

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

For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, with its optional front crash prevention system, and its headlight’s “Good” rating, the Insurance Institute for Highway Safety grants the G80 its highest rating: “Top Pick Plus” for 2019, a rating granted to only 55 vehicles tested by the IIHS. The RLX has not been fully tested, yet.

Warranty

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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 RLX’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 RLX. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the RLX ends after only 6 years or 70,000 miles.

The G80’s corrosion warranty is 2 years longer than the RLX’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 RLX.

There are over 17 percent more Genesis dealers than there are Acura dealers, which makes it easier should you ever need service under the G80’s warranty.

Reliability

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To reliably start during all conditions and help handle large electrical loads, the G80 has a standard 740-amp battery. The RLX’s 550-amp battery isn’t as powerful.

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 21 points higher than the RLX.

J.D. Power and Associates rated the G80 second among midsize premium cars in their 2019 Initial Quality Study. The RLX isn’t in the top three in its category.

J.D. Power and Associates’ 2019 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 47 more problems per 100 vehicles, Acura is ranked 24th, below the industry average.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Genesis vehicles are more reliable than Acura vehicles. Consumer Reports ranks Genesis 1 place higher in reliability than Acura.

Engine

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The G80 has more powerful engines than the RLX:

Horsepower

Torque

G80 3.8 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 5.0 DOHC V8

420 HP

383 lbs.-ft.

RLX 3.5 SOHC V6

310 HP

272 lbs.-ft.

RLX Sport Hybrid 3.5 SOHC V6 hybrid

377 HP

341 lbs.-ft.

Fuel Economy and Range

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The G80 has 5.2 gallons more fuel capacity than the RLX Sport Hybrid’s standard fuel tank (20.3 vs. 15.1 gallons), for longer range between fill-ups. The G80 has 1.8 gallons more fuel capacity than the RLX’s standard fuel tank (20.3 vs. 18.5 gallons).

Brakes and Stopping

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

G80 3.8

G80 3.3T Sport

RLX

RLX Sport Hybrid

Front Rotors

13.6 inches

14.2 inches

12.3 inches

13 inches

Rear Rotors

12.4 inches

13 inches

12.2 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 RLX are solid, not vented.

The G80 stops shorter than the RLX:

G80

RLX

60 to 0 MPH

114 feet

119 feet

Motor Trend

60 to 0 MPH (Wet)

137 feet

138 feet

Consumer Reports

Tires and Wheels

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The G80’s optional 275/35R19 rear tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the RLX’s 40 series tires.

The G80 has a standard space-saver spare tire so you can replace a flat tire and drive to have the flat repaired or replaced. A spare tire isn’t available on the RLX; it requires you to depend on roadside assistance and your vehicle will have to be towed.

Suspension and Handling

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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 RLX’s suspension doesn’t offer adjustable shock absorbers.

For a smoother ride and more stable handling, the G80’s wheelbase is 6.3 inches longer than on the RLX (118.5 inches vs. 112.2 inches).

The G80 5.0 handles at .88 G’s, while the RLX pulls only .80 G’s of cornering force in a Motor Trend skidpad test.

The G80 3.8 AWD executes Motor Trend’s “Figure Eight” maneuver 1.1 seconds quicker than the RLX (26.2 seconds @ .69 average G’s vs. 27.3 seconds @ .64 average G’s).

For better maneuverability, the G80’s turning circle is 4.3 feet tighter than the RLX’s (36.2 feet vs. 40.5 feet). The G80’s turning circle is 3.1 feet tighter than the RLX’s (37.4 feet vs. 40.5 feet).

Passenger Space

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Because it has more passenger and cargo room, the EPA rates the G80 a Large car, while the RLX is rated a Mid-size.

The G80 has 5.6 cubic feet more passenger volume than the RLX (107.7 vs. 102.1).

The G80 has 3.5 inches more front headroom, 3.4 inches more front legroom, 1.3 inches more rear headroom, .3 inches more rear hip room and .1 inches more rear shoulder room than the RLX.

Cargo Capacity

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The G80 has a larger trunk than the RLX (15.3 vs. 14.9 cubic feet).

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

Servicing Ease

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

Ergonomics

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The power windows standard on both the G80 and the RLX 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 RLX prevents the driver from operating the other windows just as it does the other passengers.

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 RLX 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 RLX doesn’t offer cornering lights.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Genesis G80 offers an optional wireless phone charging system (Qi) in the center console. The RLX doesn’t offer wireless personal charging.

Economic Advantages

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/12

The G80 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the G80 will retain 36.48% to 41.02% of its original price after five years, while the RLX only retains 32.48% to 33.89%.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Genesis G80 will be $381 to $14520 less than for the Acura RLX.

Recommendations

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/12/12

Consumer Reports® recommends the Genesis G80, based on reliability, safety and performance. The Acura RLX isn't recommended.

The Genesis G80 outsold the Acura RLX by over four to one during the 2019 model year.

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

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