VS
At a Glance
Power
631hp
450hp @ 5600
Torque
627lb-ft
516lb-ft @ 3600
Towing
—
8500lbs
Engine
4.0 L/244cc
3.5 L/213cc
Choosing between the Audi Q8 and the Infiniti Qx80 is one of the most common decisions car buyers in the United States face. The Audi Q8 delivers 631hp while the Infiniti Qx80 produces 450hp @ 5600. Pricing starts at $138,300 for the Q8 and $90,850 for the Qx80. 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.
Performance
Power Output (hp)
631hp
450hp @ 5600
Torque (lb-ft)
627lb-ft
516lb-ft @ 3600
Engine & Drivetrain
Engine Capacity
4.0 L/244cc
3.5 L/213cc
Engine Layout
—
V
Cylinders
8
6
Fuel Type
—
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic w/OD
Number of Gears
8
—
Drive Wheels
All Wheel Drive
Rear Wheel Drive
Fuel Economy
Fuel Economy - City (mpg)
14mpg
16mpg
Fuel Economy - Highway (mpg)
20mpg
20mpg
Fuel Tank Capacity (gal)
22.5gal
23.6gal
Dimensions
Length (in)
197.3in
211.2in
Width (in)
78.7in
83.3in
Height (in)
66.7in
77in
Wheelbase (in)
117.9in
121.1in
Curb Weight (lbs)
5434lbs
5900lbs
Towing & Payload
Towing Capacity (lbs)
—
8500lbs
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
Trailer Hitch
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Infiniti Qx80
2 / 4 categories
Performance
Q8
Fuel Economy
Tied
Value
Qx80
Practicality
Qx80
Pros & Cons
Audi Q8
Well-rounded specification
Higher starting price
Infiniti Qx80
Lower starting price ($90,850)
Few notable weaknesses
Frequently Asked Questions
Which has more power, the Q8 or Qx80?
The Q8 produces 631hp and 627lb-ft of torque while the Qx80 delivers 450hp @ 5600 and 516lb-ft @ 3600 of torque. They produce similar power outputs.
What is the price difference between the Q8 and Qx80?
The Q8 starts from $138,300 and the Qx80 from $90,850. The Qx80 is cheaper by $47,450 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the Q8 or Qx80?
The Q8 has a braked towing capacity of not specified and the Qx80 can tow 8500lbs. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the Q8 or the Qx80?
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.