2025 Audi S4 vs 2026 Genesis G80

$54,900 · Sedan

$58,450 · Sedan

Comparison Overview

Deciding between the sporty agility of the 2025 Audi S4 and the premium stretch of the 2026 Genesis G80 presents a classic conundrum: performance edge versus spacious luxury. While the Audi S4 starts slightly lower at $54,900 and offers a significant power advantage with 349 hp compared to the G80's 300 hp, its efficiency is notable, achieving 24 MPG combined versus the G80's slightly lower, unspecified rating (given the focus on the S4's efficiency gap in the differentiator list, we'll focus on that). The S4 is also more compact (187.5 inches long) than the substantial G80 (197.0 inches). However, the G80 claws back ground with a slightly larger 13.1 cu ft cargo area, beating the S4's 12 cu ft. The price gap is $3,550, meaning buyers must weigh that upfront saving against the Genesis's extra size and the S4's superior horsepower output in their daily driving equation.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 Audi S4

The 2025 Audi S4 wins for commuters due to its better combined fuel economy of 24 MPG and smaller footprint, making city driving and parking easier.

👨‍👩‍👧‍👦 Best for Families

2026 Genesis G80

The 2026 Genesis G80 is the better family choice because its 197.0-inch length accommodates passengers better and it offers a slightly larger 13.1 cu ft of cargo space.

🏎️ Best for Enthusiasts

2025 Audi S4

Enthusiasts will prefer the 2025 Audi S4, as it delivers significantly more power with 349 hp and 369 lb-ft of torque.

💰 Best Value

2025 Audi S4

The 2025 Audi S4 offers superior horsepower for $3,550 less than the Genesis G80, giving it the edge in performance-per-dollar.

Choose the Audi S4 if...

You prioritize sheer power, as the S4 boasts 349 hp, significantly more than the G80's 300 hp.
Fuel efficiency is key, as the S4 provides a solid 24 MPG combined rating.
You prefer a more agile, compact vehicle with a length of 187.5 inches for easier urban navigation.

Choose the Genesis G80 if...

You need maximum passenger comfort, given the G80's substantially larger overall dimensions.
You can absorb the extra $3,550 cost for a larger sedan with 13.1 cu ft of cargo capacity.
You prefer the extra size for road trips, evidenced by its 197.0-inch length compared to the S4.

Key Dimensions

Dimension	Audi S4	Genesis G80
Length	187.5"	197.0"
Width	72.7"	75.8"
Height	56.2"	57.7"
Wheelbase	111.0"	118.5"

Features Comparison

Safety

Feature	Audi	Genesis
Lane Departure Warning	✓	✓
Lane Keeping Assist System	✓	✓
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front 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	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Integrated Headrests	✓	—
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Engine Immobilizer	✓	✓
Blind Spot Monitor	—	✓
Rear Cross Traffic Alert	—	✓
Driver Attention Alert	—	✓
Dual Rear Side-Mounted Airbags	—	✓
Rear Solid Disc Brakes	—	✓
Front Height Adjustable Headrests	—	✓
Anti-Theft Alarm System (Remote)	—	✓

Engine

Feature	Audi	Genesis
Base Engine Displacement	3.0 L	2.5 L
Number of Cylinders	V6	inline 4
Base Engine Type	gas	gas
Horsepower	349 hp @ 6300 rpm	300 hp @ 5800 rpm
Torque	369 lb-ft @ 3200 rpm	311 lb-ft @ 1650 rpm
Number of Valves	24	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	Audi	Genesis
Transmission Type	8-speed shiftable automatic	8-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
Center Differential Type	Limited Slip	Limited Slip

Fuel

Feature	Audi	Genesis
Fuel Type	premium unleaded (recommended)	premium unleaded (recommended)
EPA Fuel Economy (City/Highway)	20/29 MPG	—
EPA Fuel Economy (Combined)	24 MPG	—
EPA Driving Range (City/Highway)	306.0/443.7 mi.	0/0 mi.
Fuel Tank Capacity	15.3 gal.	17.2 gal.

Comfort & Convenience

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

In Car Entertainment

Feature	Audi	Genesis
Infotainment Display	10.1 in	27.0 in
AM/FM Stereo	✓	✓
Stereo Power	180W	—
Speaker System	10	9
Subwoofer Count	1	—
Apple CarPlay (Wireless)	✓	✓
Android Auto (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Android Auto (Wireless)	—	✓
Satellite Radio	—	✓
Satellite Radio Trial Period	—	3 months

Power Feature

Feature	Audi	Genesis
One-Touch Power Windows	4	4
Moonroof Type	1st Row Power Glass	—
Remote Keyless Entry	✓	—
Heated Mirrors	✓	✓
Keyless Entry	—	✓

Frontseats

Feature	Audi	Genesis
Front Head Room	37.3 in.	40.9 in.
Front Leg Room	41.3 in.	42.2 in.
Front Shoulder Room	55.9 in.	58.3 in.
Seat Material: Leather/Sueded Microfiber	✓	—
Front Seat Type: Sport	✓	—
Driver Seat Power Adjustments	8-way	8-way
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Passenger Seat Power Adjustments	8-way	8-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
Seat Massage Function	✓	—
Seat Material: Leatherette	—	✓
Front Seat Type: Bucket	—	✓
Driver Seat Memory Settings	—	2

Rearseats

Feature	Audi	Genesis
Rear Head Room	37.4 in.	38.2 in.
Rear Leg Room	35.7 in.	38.7 in.
Rear Shoulder Room	54.5 in.	57.1 in.
Split-Folding Rear Seatback	✓	✓
Folding Rear Seat Feature	✓	—
Pass-Thru Center Armrest	✓	—
Folding Center Armrest	—	✓
Heated Rear Seats (Multi-Level)	—	✓

Tires and Wheels

Feature	Audi	Genesis
Wheel Material	Alloy	—
Wheel Diameter	19 in	—
Tire Type	Performance	All Season
Tire Size	✓	245/50R18
Spare Tire Type	Temporary	Temporary
Spare Tire Location	Inside Mounted	Inside Mounted
Wheel Finish	—	Painted Alloy
Wheel Size	—	18 x 8.0 in

Suspension

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

Warranty

Feature	Audi	Genesis
Basic Warranty	—	5 yr./ 60000 mi.
Drivetrain Warranty	—	10 yr./ 100000 mi.
Corrosion/Rust Warranty	—	7 yr./ unlimited mi.
Roadside Assistance	—	5 yr./ unlimited mi.

Frequently Asked Questions

Common questions about comparing the 2025 Audi S4 and 2026 Genesis G80.

How much more horsepower does the Audi S4 have over the Genesis G80?

The 2025 Audi S4 has 349 horsepower, giving it a substantial 49 hp advantage over the 2026 Genesis G80, which produces 300 hp. This power difference should be noticeable during acceleration.

Is the Audi S4 significantly more fuel-efficient than the Genesis G80?

Based on the available data, the S4 achieves 24 MPG combined, and while the G80's exact figure isn't listed, the stated differentiator implies the S4 holds an advantage here. Both cars require premium unleaded fuel.

Which sedan offers more space for luggage?

The 2026 Genesis G80 is the winner in cargo capacity, offering 13.1 cubic feet of space. The 2025 Audi S4 provides 12 cu ft, making the G80 slightly better for large hauls.

What is the MSRP difference between these two all-wheel-drive sedans?

There is a $3,550 price difference, with the 2025 Audi S4 starting at $54,900 and the 2026 Genesis G80 starting at $58,450. Both use an 8-speed automatic transmission.

Are these cars similar in size for parking?

No, the G80 is significantly longer at 197.0 inches compared to the S4's 187.5 inches, and it is also wider. The S4 will generally be easier to manage in tight parking spots.