Compare the2025 Genesis G90VS 2024 Audi S8

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 G90 are reminded to check the back seat when a sensor determines the back seat is occupied. The S8 doesn’t offer a back seat reminder.

The G90 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 S8 doesn’t offer a whiplash protection system.

Over 200 people are killed each year when backed over by motor vehicles. The G90 has a standard Parking Collision-Avoidance Assist-Reverse that uses rear sensors to monitor for objects to the rear and automatically applies the brakes to prevent a collision. The S8 doesn’t offer automatic braking for stationary objects directly to the rear.

The G90 has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them and moves the vehicle back into its lane. A system to reveal vehicles in the S8’s blind spot costs extra.

To help make backing out of a parking space safer, the G90 has standard Rear Cross-Traffic Collision-Avoidance Assist and automatically engage the brakes. Audi charges extra for Rear Cross-Traffic Assist on the S8.

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 S8 doesn’t offer a driver alert monitor.

Both the G90 and the S8 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, front seat center airbag, side-impact head airbags, front and rear seatbelt pretensioners, height adjustable front shoulder belts, four-wheel antilock brakes, all wheel drive, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems and around view monitors.

The Genesis G90 has achieved the Insurance Institute for Highway Safety’s (IIHS) highest rating of “Top Safety Pick Plus” for the 2024 model year. This distinction is based on its exceptional performance in IIHS’ rigorous battery of safety tests. Specifically, it earned an “Acceptable” rating in the latest, more stringent moderate overlap front crash test, a “Good” result in the updated side impact test, and a “Good” score in the revised pedestrian crash prevention test. The S8 has not yet been evaluated by the IIHS for 2024.

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 S8’s 4-year/50,000-mile basic warranty expires 1 year or 10,000 miles sooner.

Genesis’ powertrain warranty covers the G90 6 years and 50,000 miles longer than Audi covers the S8. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the S8 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, air filter replacements, brake fluid replacement, inspections, and any other required maintenance. Audi only pays for the first scheduled maintenance visit on the S8.

J.D. Power and Associates’ 2024 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 above average in initial quality. With 58 more problems per 100 vehicles, Audi is rated below average.

J.D. Power and Associates’ 2024 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Genesis vehicles are more reliable than Audi With 75 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks Genesis higher than Audi.

From surveys of all its subscribers, Consumer Reports’ January 2024 Auto Issue reports that Genesis vehicles are more reliable than Audi vehicles. Consumer Reports ranks Genesis 1 place higher in reliability than Audi.

On the EPA test cycle the G90 gets better mileage than the S8:

To lower fuel costs and make buying fuel easier, the Genesis G90 uses regular unleaded gasoline (premium recommended for maximum performance). The S8 requires premium, which can cost on average about 84.9 cents more per gallon.

In its Green Vehicle Guide, the U.S. Environmental Protection Agency (EPA) rates the Genesis G90 higher (4 out of 10) than the Audi S8 (3). This means the G90 produces up to 11.3 pounds less smog-producing pollutants than the S8 every 15,000 miles.

For better traction and acceleration, the G90 has larger rear tires than the S8 (275/40R20 vs. 265/35R21).

For a smoother ride and more stable handling, the G90’s wheelbase is 2 inches longer than on the S8 (125.2 inches vs. 123.2 inches).

For better handling and stability, the track (width between the wheels) on the G90 is 1.1 inches wider in the front and 1.7 inches wider in the rear than on the S8.

For better maneuverability, the G90 3.5T e-SC’s turning circle is 1.6 feet tighter than the S8’s (37.1 feet vs. 38.7 feet).

The Genesis G90 may be more efficient, handle and accelerate better because it weighs up to about 300 pounds less than the Audi S8.

The front grille of the G90 uses electronically controlled shutters to close off airflow and reduce drag when less engine cooling is needed. This helps improve highway fuel economy. The S8 doesn’t offer active grille shutters.

The G90 has 1.1 inches more front headroom, .8 inches more front legroom and .3 inches more rear shoulder room than the S8.

The G90’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The S8’s cruise control switches are unlit, making them difficult to find at night and operate safely.

Both the Genesis G90 and the Audi S8 have a standard Qi wireless phone charging system in the front seat. To easily keep personal devices charged in the rear seat, without cables tangling and wearing out, the G90 3.5T e-SC also has a standard wireless charging system.

Insurance will cost less for the G90 owner. The Complete Car Cost Guide estimates that insurance for the G90 will cost $2520 to $3055 less than the S8 over a five-year period.

The G90 will cost the buyer less in the long run because of its superior resale value. The IntelliChoice estimates that the G90 will retain 42.39% to 42.41% of its original price after five years, while the S8 only retains 40.38%.