2019 Genesis G90 vs. 2018 Audi A6

Detailed Review, Specifications & Comparison

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Safety

For enhanced safety, the front and rear seat shoulder belts of the Genesis G90 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 Audi A6 doesn’t offer pretensioners for the rear seat belts.

The Insurance Institute for Highway Safety tests front crash prevention systems. With a score of 6 points, IIHS rates the Automatic Emergency Braking in the G90 as “Superior.” The A6 scores only 3 points and is rated only “Advanced.”

To help make backing safer, the G90’s cross-path warning system uses wide-angle radar in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The A6 doesn’t offer a cross-path warning system.

The G90’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 A6 doesn’t offer a driver alert monitor.

The G90 has standard Connected Care, which uses a global positioning satellite (GPS) receiver and a cellular system to get turn-by-turn driving directions, remotely unlock your doors if you lock your keys in, help track down your vehicle if it’s stolen or send emergency personnel to the scene if any airbags deploy. The A6 doesn’t offer a GPS response system, only a navigation computer with no live response for emergencies, so if you’re involved in an accident and you’re incapacitated help may not come as quickly.

Both the G90 and the A6 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, daytime running lights, rearview cameras and available all wheel drive.

The Genesis G90 weighs 474 to 1102 pounds more than the Audi A6. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

For its top level performance in IIHS driver-side small overlap frontal, moderate overlap frontal, side impact, rear impact and roof-crush tests, its standard 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 G90 its highest rating: “Top Pick Plus” for 2018, a rating granted to only 28 vehicles tested by the IIHS. The A6 was last qualified as only a “Top Pick” in 2017.

Warranty

The G90 comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes free 24-hour roadside assistance. The A6’s 4-year/50,000-mile basic warranty expires 1 year and 10,000 miles sooner.

Genesis’ powertrain warranty covers the G90 6 years and 50,000 miles longer than Audi covers the A6. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the A6 ends after only 4 years or 50,000 miles.

Genesis pays for scheduled maintenance on the G90 for 3 years and 36,000 miles. Genesis will pay for oil changes, lubrication and any other required maintenance. Audi only pays for the first scheduled maintenance visit on the A6.

There are over 16 percent more Genesis dealers than there are Audi dealers, which makes it easier should you ever need service under the G90’s warranty.

Reliability

J.D. Power and Associates rated the G90 first among large premium cars in their 2018 Initial Quality Study. The A6 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 Audi vehicles. J.D. Power ranks Genesis first in initial quality, above the industry average. With 37 more problems per 100 vehicles, Audi is ranked 25th, below the industry average.

Engine

The G90 3.3T’s standard 3.3 turbo V6 produces 113 more horsepower (365 vs. 252) and 103 lbs.-ft. more torque (376 vs. 273) than the A6 2.0T’s standard 2.0 turbo 4 cyl. The G90 3.3T’s 3.3 turbo V6 produces 25 more horsepower (365 vs. 340) and 51 lbs.-ft. more torque (376 vs. 325) than the A6 3.0T’s standard 3.0 supercharged V6. The G90 5.0’s standard 5.0 DOHC V8 produces 80 more horsepower (420 vs. 340) and 58 lbs.-ft. more torque (383 vs. 325) than the A6 3.0T’s standard 3.0 supercharged V6.

As tested in Motor Trend the G90 3.3T is faster than the A6 2.0T:

 

G90

A6

Zero to 60 MPH

5.3 sec

6 sec

Quarter Mile

13.9 sec

14.6 sec

Speed in 1/4 Mile

99.9 MPH

93.2 MPH

Fuel Economy and Range

To lower fuel costs and make buying fuel easier, the Genesis G90 uses regular unleaded gasoline (premium recommended for maximum performance). The A6 requires premium, which can cost 20 to 55 cents more per gallon.

The G90 has 2.1 gallons more fuel capacity than the A6 (21.9 vs. 19.8 gallons), for longer range between fill-ups.

Brakes and Stopping

For better stopping power the G90’s brake rotors are larger than those on the A6:

 

G90 3.3T

G90 5.0

A6 2.0T

A6 3.0T

Front Rotors

14.2 inches

14.8 inches

13.6 inches

14 inches

Rear Rotors

13.4 inches

13.4 inches

13 inches

13 inches

The G90’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the A6 2.0T are solid, not vented.

Tires and Wheels

For better traction and acceleration, the G90 has larger rear tires than the A6 (275/40R19 vs. 245/45R18). The G90’s rear tires are larger than the largest rear tires available on the A6 (275/40R19 vs. 255/40R19).

The G90’s 275/40R19 rear tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the A6’s standard 45 series tires.

For better ride, handling and brake cooling the G90 has standard 19-inch wheels. Smaller 18-inch wheels are standard on the A6.

Suspension and Handling

The G90 has a standard 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 A6’s suspension doesn’t offer adjustable shock absorbers.

For a smoother ride and more stable handling, the G90’s wheelbase is 9.8 inches longer than on the A6 (124.4 inches vs. 114.6 inches).

The G90’s front to rear weight distribution is more even (51% to 49%) than the A6’s (53.5% to 46.5%). This gives the G90 more stable handling and braking.

The G90 3.3T AWD handles at .85 G’s, while the A6 2.0T Premium Quattro pulls only .84 G’s of cornering force in a Motor Trend skidpad test.

The G90 3.3T AWD executes Motor Trend’s “Figure Eight” maneuver quicker than the A6 2.0T Premium Quattro (26.1 seconds @ .72 average G’s vs. 26.8 seconds @ .66 average G’s).

Passenger Space

Because it has more passenger and cargo room, the EPA rates the G90 a Large car, while the A6 is rated a Mid-size.

The G90 has 16 cubic feet more passenger volume than the A6 (113.2 vs. 97.2).

The G90 has 3.9 inches more front headroom, 5 inches more front legroom, 1.6 inches more front shoulder room, .2 inches more rear headroom, .4 inches more rear legroom and 1.6 inches more rear shoulder room than the A6.

For enhanced passenger comfort on long trips the G90 5.0’s rear seats recline. The A6’s rear seats don’t recline.

Cargo Capacity

The G90 has a much larger trunk than the A6 (15.7 vs. 14.1 cubic feet).

Ergonomics

The G90 has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The A6 doesn’t offer a remote starting system.

The Insurance Institute for Highway Safety (IIHS) conducts detailed tests on headlights for their range both straight ahead and in curves and to be certain they don’t exceed acceptable amounts of glare to oncoming drivers. The G90’s available headlights were rated “Acceptable” by the IIHS, while the A6’s headlights are rated “Marginal” to “Poor.”

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the G90 has standard extendable sun visors. The A6 doesn’t offer extendable visors.

When the G90 is put in reverse, both rearview mirrors tilt from their original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirrors into their original positions. The A6’s mirrors don’t automatically adjust for backing.

The G90 has standard front air-conditioned seats and the G90 5.0 also has them in the rear. This keeps the passengers comfortable and takes the sting out of hot seats in summer. The A6 doesn’t offer air-conditioned seats in the rear.

The G90 has a standard heated steering wheel to take the chill out of steering on extremely cold winter days before the car heater warms up. A heated steering wheel costs extra on the A6.

Recommendations

Consumer Reports® recommends both the Genesis G90 and the Audi A6, based on reliability, safety and performance.

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

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