VS
At a Glance
Power
631hp
348hp @ 5400
Torque
627lb-ft
368lb-ft @ 1450
Towing
—
7716lbs
Engine
4.0 L/244cc
3.0 L/183cc
Choosing between the Audi Q8 and the Porsche Cayenne is one of the most common decisions car buyers in the United States face. The Audi Q8 delivers 631hp while the Porsche Cayenne produces 348hp @ 5400. Pricing starts at $138,300 for the Q8 and $95,100 for the Cayenne. 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
348hp @ 5400
Torque (lb-ft)
627lb-ft
368lb-ft @ 1450
Engine & Drivetrain
Engine Capacity
4.0 L/244cc
3.0 L/183cc
Engine Layout
—
V
Cylinders
8
6
Fuel Type
—
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic w/OD
Number of Gears
8
8
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy - City (mpg)
14mpg
17 (Est)mpg
Fuel Economy - Highway (mpg)
20mpg
23 (Est)mpg
Fuel Tank Capacity (gal)
22.5gal
23.7gal
Dimensions
Length (in)
197.3in
194.1in
Width (in)
78.7in
78.1in
Height (in)
66.7in
66.1in
Wheelbase (in)
117.9in
114in
Curb Weight (lbs)
5434lbs
4740lbs
Towing & Payload
Towing Capacity (lbs)
—
7716lbs
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
Porsche Cayenne
2 / 4 categories
Performance
Q8
Fuel Economy
Tied
Value
Cayenne
Practicality
Cayenne
Pros & Cons
Audi Q8
Well-rounded specification
Higher starting price
Porsche Cayenne
Lower starting price ($95,100)
Few notable weaknesses
Frequently Asked Questions
Which has more power, the Q8 or Cayenne?
The Q8 produces 631hp and 627lb-ft of torque while the Cayenne delivers 348hp @ 5400 and 368lb-ft @ 1450 of torque. They produce similar power outputs.
What is the price difference between the Q8 and Cayenne?
The Q8 starts from $138,300 and the Cayenne from $95,100. The Cayenne is cheaper by $43,200 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the Q8 or Cayenne?
The Q8 has a braked towing capacity of not specified and the Cayenne can tow 7716lbs. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the Q8 or the Cayenne?
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.