2026 Audi S8 vs 2026 Genesis G90

$130,000 · Sedan

$92,700 · Sedan

Comparison Overview

The 2026 Audi S8 arrives as the undisputed titan of thrust, unleashing a formidable 563 hp and 590 lb-ft of torque, making its $130,000 price tag understandable for outright performance; it’s a muscular express train built for high-velocity driving. Contrast this with the supremely elegant 2026 Genesis G90, a bastion of attainable luxury that begins at just $92,700 while still offering a capable 375 hp and excellent efficiency at 21 combined MPG. The S8 dominates the power metrics, boasting an 188 hp advantage over the G90, though its 15 city MPG trails the G90’s 18 city MPG considerably. While the S8 occupies a massive 209.5 inches of road presence, the G90 remains sleek yet roomy, offering a substantial $37,300 less financial burden for similar flagship dimensions.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2026 Genesis G90

The Genesis G90 wins for commuters due to its superior fuel efficiency, achieving 21 combined MPG compared to the Audi S8's 18 MPG.

👨‍👩‍👧‍👦 Best for Families

2026 Genesis G90

Families will appreciate the G90's $37,300 lower initial cost and similar overall sedan dimensions, offering prestige without the premium performance cost.

🏎️ Best for Enthusiasts

2026 Audi S8

The Audi S8 is the clear choice for enthusiasts, packing a massive 563 hp and 590 lb-ft of torque, dramatically exceeding the G90’s output.

💰 Best Value

2026 Genesis G90

The Genesis G90 offers far greater value, providing flagship luxury accommodations for $92,700 versus the S8's $130,000 entry point.

Choose the Audi S8 if...

You demand brutal acceleration, evidenced by its 563 horsepower output.
You require the highest level of AWD performance and driving dynamics offered in this pair.
Budget is secondary to possessing an executive sedan with 590 lb-ft of torque.

Choose the Genesis G90 if...

You prioritize economy, benefiting from the G90's 26 highway MPG rating.
You seek prestige and luxury while saving exactly $37,300 off the initial purchase price.
You prefer a slightly more maneuverable footprint, as the G90 is shorter at 207.7 inches compared to the S8.

Key Dimensions

Dimension	Audi S8	Genesis G90
Length	209.5"	207.7"
Width	76.6"	76.0"
Height	58.5"	58.7"
Wheelbase	123.2"	125.2"

Features Comparison

Safety

Feature	Audi	Genesis
Lane Departure Warning	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Dual Rear Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	✓
Brake Preparation System	✓	—
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	✓
LED Headlights	✓	✓
Self-Leveling Headlights	✓	—
Daytime Running Lights	✓	✓
Cornering Lights	✓	—
Headlight Washers	✓	—
Front Fog Lights	✓	—
Integrated Turn Signal Mirrors	✓	—
Front Headrests	2	2
Front Height Adjustable Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Front Power Adjustable Headrests	—	✓

Engine

Feature	Audi	Genesis
Base Engine Displacement	4.0 L	3.5 L
Number of Cylinders	V8	V6
Base Engine Type	mild hybrid	gas
Horsepower	563 hp	375 hp @ 5800 rpm
Torque	590 lb-ft	391 lb-ft @ 1300 rpm
Number of Valves	32	24
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓
Cylinder Deactivation	✓	—

Drive Train

Feature	Audi	Genesis
Transmission Type	8-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
[object Object]	✓	—
[object Object]	✓	—
Hill Descent Control	✓	—
Center Differential Type	—	Limited Slip

Fuel

Feature	Audi	Genesis
Fuel Type	premium unleaded (required)	premium unleaded (recommended)
EPA Fuel Economy (City/Highway)	15/24 MPG	18/26 MPG
EPA Fuel Economy (Combined)	18 MPG	21 MPG
EPA Driving Range (City/Highway)	325.5/520.8 mi.	347.4/501.8 mi.
Fuel Tank Capacity	21.7 gal.	19.3 gal.

Comfort & Convenience

Feature	Audi	Genesis
Push Button Start	✓	✓
Power Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Front View Camera	✓	✓
Side View Camera	✓	✓
Rear View Camera	✓	✓
Front Parking Sensors	✓	✓
Rear Parking Sensors	✓	—
Wireless Charging Pad	✓	✓
Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Leather Steering Wheel	✓	✓
Heated Steering Wheel	✓	✓
Four Zone Climate Control	✓	—
Rear Ventilation Ducts with Fan Control	✓	✓
Interior Air Filtration	✓	—
Extended Cabin Heating	✓	—
Dual Vanity Mirrors	✓	✓
Auto-Dimming Rearview Mirror	✓	✓
Turn Signal Indicators in Mirrors	✓	—
Cooled Storage Compartment	✓	—
Cruise Control on Steering Wheel	—	✓
Rear Parking Sensors with Side Sensing	—	✓
Automatic Parking Assist	—	✓
Adaptive Cruise Control	—	✓
Overhead Console with Storage	—	✓
Three Zone Climate Control	—	✓
Extended Cabin Heating/Cooling	—	✓

In Car Entertainment

Feature	Audi	Genesis
Infotainment Display	10.1 in	12.3 in
AM/FM Stereo	✓	✓
Premium Brand Speakers	Bang & Olufsen	Bang & Olufsen
Stereo Power	730W	1400W
Speaker System	17	15
Surround Audio	Discrete	Discrete
Android Auto (Wireless)	✓	✓
Apple CarPlay (Wireless)	✓	✓
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	3 months	3 months
Speed Sensitive Volume Control	✓	✓

Power Feature

Feature	Audi	Genesis
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass	1st Row Power Glass Extended
Keyless Entry	✓	✓
Reverse Tilt Passenger Mirror	✓	—
Heated Mirrors	✓	✓

Frontseats

Feature	Audi	Genesis
Front Head Room	38.3 in.	39.4 in.
Front Leg Room	41.5 in.	42.3 in.
Front Shoulder Room	59.1 in.	59.1 in.
Seat Material: Premium Leather	✓	✓
Front Seat Type: Sport	✓	—
Driver Seat Power Adjustments	18-way	18-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	3
Passenger Seat Power Adjustments	18-way	16-way
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Driver Seat Ventilation	✓	✓
Passenger Seat Ventilation	✓	✓
Seat Massage Function	✓	✓
Front Seat Type: Bucket	—	✓
Driver Seat Thigh Extension	—	✓
Passenger Seat Thigh Extension	—	✓

Rearseats

Feature	Audi	Genesis
Rear Head Room	38.5 in.	38.0 in.
Rear Leg Room	44.3 in.	37.8 in.
Rear Shoulder Room	57.6 in.	57.9 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Reclining Rear Seats	—	✓
Folding Center Armrest	—	✓
Heated Rear Seats (Multi-Level)	—	✓

Tires and Wheels

Feature	Audi	Genesis
Wheel Material	Alloy	—
Wheel Size	21 in	20 x 9.5 in.
Tire Type	Performance	All Season
Tire Size	265/35R21	275/40R20
Spare Tire Type	Temporary	Temporary
Spare Tire Location	Inside Mounted	Inside Mounted
Wheel Finish	—	Painted Alloy

Suspension

Feature	Audi	Genesis
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	—
Rear Stabilizer Bar	✓	—

Warranty

Feature	Audi	Genesis
Basic Warranty	4 yr./ 50000 mi.	5 yr./ 60000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	10 yr./ 100000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	7 yr./ unlimited mi.
Roadside Assistance	4 yr./ unlimited mi.	5 yr./ unlimited mi.
Complimentary Scheduled Maintenance	3 yr./ 30000 mi.	3 yr./ 36000 mi.

Frequently Asked Questions

Common questions about comparing the 2026 Audi S8 and 2026 Genesis G90.

What is the primary performance difference between the 2026 Audi S8 and the Genesis G90?

The Audi S8 is significantly more powerful, delivering 563 horsepower and 590 lb-ft of torque, giving it a massive 188 hp advantage over the Genesis G90's 375 horsepower rating. This translates directly to superior acceleration for the S8.

How does the price difference affect the overall value proposition?

There is a substantial $37,300 difference in MSRP, with the Genesis G90 commanding $92,700 versus the Audi S8's $130,000 sticker price. This makes the G90 the definitive value leader, offering flagship sedan amenities for far less investment.

Which sedan is better suited for long-distance commuting efficiency?

The Genesis G90 is the better choice for fuel efficiency, achieving 21 combined MPG (18 city/26 highway). The Audi S8 trails slightly with 18 combined MPG (15 city/24 highway), and it strictly requires premium unleaded fuel.

Are there significant differences in physical size between the two luxury sedans?

The vehicles are similarly sized, but the Audi S8 is slightly longer at 209.5 inches compared to the G90’s 207.7 inches, though both are wide, over 76 inches across. Cargo capacity is almost identical, with the S8 offering a fraction more at 12.5 cubic feet.

Do both cars use the same type of transmission and drivetrain?

Yes, both the 2026 Audi S8 and the 2026 Genesis G90 utilize an 8-speed shiftable automatic transmission paired with an all-wheel drive system for optimal traction.