VS
At a Glance
Power
500hp @ 5500
493hp @ 6000
Torque
568lb-ft @ 3000
486lb-ft @ 2100
Fuel
17 mpg est.
19 mpg est.
Towing
—
7716lbs
Engine
4.0 L/244ci
4.0 L/244ci
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 500hp @ 5500 while the Porsche Cayenne produces 493hp @ 6000. On fuel, the Q8 returns 17 mpg est. while the Cayenne uses 19 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $86,200 for the Q8 and $137,100 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.
Specification
Audi Q8Prestige quattro 2026 - From $86,200
Porsche CayenneGTS Coupe AWD 2026 - From $137,100
Performance
Power Output (hp)
500hp @ 5500
493hp @ 6000
Torque (lb-ft)
568lb-ft @ 3000
486lb-ft @ 2100
Engine & Drivetrain
Engine Capacity
4.0 L/244ci
4.0 L/244ci
Cylinders
8
8
Fuel Type
Gasoline
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
8
8
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
17 mpg est.
19 mpg est.
Fuel Economy - City (mpg)
14mpg
16 (Est)mpg
Fuel Economy - Highway (mpg)
20mpg
22 (Est)mpg
Fuel Tank Capacity (gal)
22.5gal
23.7gal
Dimensions
Length (in)
196.6in
194.1in
Width (in)
78.5in
78.3in
Height (in)
67.2in
65.1in
Wheelbase (in)
117.9in
114in
Curb Weight (lbs)
5203lbs
5027lbs
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
Tie
2 / 4 categories
Performance
Q8
Fuel Economy
Cayenne
Value
Q8
Practicality
Cayenne
Pros & Cons
Audi Q8
Lower starting price ($86,200)
Higher fuel consumption (17 mpg est.)
Porsche Cayenne
Better fuel economy (19 mpg est.)
Higher starting price
Frequently Asked Questions
Which is more fuel efficient, the Q8 or Cayenne?
The Q8 gets 17 mpg est. and the Cayenne gets 19 mpg est. on the combined cycle. The Cayenne 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 Q8 or Cayenne?
The Q8 produces 500hp @ 5500 and 568lb-ft @ 3000 of torque while the Cayenne delivers 493hp @ 6000 and 486lb-ft @ 2100 of torque. They produce closely matched power outputs.
What is the price difference between the Q8 and Cayenne?
The Q8 starts from $86,200 and the Cayenne from $137,100. The Q8 is cheaper by $50,900 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.