VS
At a Glance
Power
335hp @ 5000
409hp @ 5800
Torque
369lb-ft @ 1370
405lb-ft @ 1300
Fuel
23 mpg est.
20 mpg est.
Engine
3.0 L/183ci
3.5 L/212ci
Choosing between the Audi A8 and the Genesis G90 is one of the most common decisions car buyers in the United States face. The Audi A8 delivers 335hp @ 5000 while the Genesis G90 produces 409hp @ 5800. On fuel, the A8 returns 23 mpg est. while the G90 uses 20 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $92,000 for the A8 and $105,750 for the G90. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Specification
Audi A8L 55 TFSI quattro 2025 - From $92,000
Genesis G903.5T e-SC Prestige Black AWD 2026 - From $105,750
Performance
Power Output (hp)
335hp @ 5000
409hp @ 5800
Torque (lb-ft)
369lb-ft @ 1370
405lb-ft @ 1300
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
3.5 L/212ci
Engine Layout
V
V
Cylinders
6
6
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
8
8
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
23 mpg est.
20 mpg est.
Fuel Economy - City (mpg)
20mpg
17mpg
Fuel Economy - Highway (mpg)
26mpg
24mpg
Fuel Tank Capacity (gal)
21.7gal
19.3gal
Dimensions
Length (in)
208.7in
207.7in
Width (in)
76.6in
76in
Height (in)
58.6in
58.7in
Wheelbase (in)
123.2in
125.2in
Curb Weight (lbs)
4773lbs
5150lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
✓ Standard
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Audi A8
2 / 4 categories
Performance
G90
Fuel Economy
A8
Value
A8
Practicality
Tied
Pros & Cons
Audi A8
Better fuel economy (23 mpg est.)
Lower starting price ($92,000)
Few notable weaknesses
Genesis G90
Well-rounded specification
Higher fuel consumption (20 mpg est.)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the A8 or G90?
The A8 gets 23 mpg est. and the G90 gets 20 mpg est. on the combined cycle. The A8 is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the A8 or G90?
The A8 produces 335hp @ 5000 and 369lb-ft @ 1370 of torque while the G90 delivers 409hp @ 5800 and 405lb-ft @ 1300 of torque. The G90 is the more powerful option.
What is the price difference between the A8 and G90?
The A8 starts from $92,000 and the G90 from $105,750. The A8 is cheaper by $13,750 at this variant level. Final on-the-road pricing varies by dealer and specification.
Should I buy the A8 or the G90?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.
Also Consider