Complete configuration comparison

2027 Audi Q8 vs. 2026 Porsche Cayenne

TrueCar says the Audi Q8's $78,295 MSRP undercuts the Porsche Cayenne's $92,250 by $13,955, a gap that narrows only slightly based on real-world average prices, while the two are effectively even at the pump at 17 city/23 highway mpg apiece. Revline Drive says at the top-trim level the Porsche Cayenne makes far more power at 1,136 hp versus the Audi Q8's 640 hp and is quicker to 60 mph (2.5 seconds versus 3.6), while both cars top out at an identical 190 mph, reflecting that the Cayenne is a performance SUV and the Q8 a performance SUV coupe.

Which to choose, and why

TrueCar says the Audi Q8's $78,295 MSRP undercuts the Porsche Cayenne's $92,250 by $13,955, a gap that narrows only slightly based on real-world average prices, while the two are effectively even at the pump at 17 city/23 highway mpg apiece. Revline Drive says at the top-trim level the Porsche Cayenne makes far more power at 1,136 hp versus the Audi Q8's 640 hp and is quicker to 60 mph (2.5 seconds versus 3.6), while both cars top out at an identical 190 mph, reflecting that the Cayenne is a performance SUV and the Q8 a performance SUV coupe.

$13,955 cheaper Q8, near-identical mpg

TrueCar (opens in a new tab) says the Audi Q8's $78,295 MSRP undercuts the Porsche Cayenne's $92,250 by $13,955, a gap that narrows only slightly based on real-world average prices, while the two are effectively even at the pump at 17 city/23 highway mpg apiece.

Top-trim Cayenne makes nearly double the power

Revline Drive (opens in a new tab) says at the top-trim level the Porsche Cayenne makes far more power at 1,136 hp versus the Audi Q8's 640 hp and is quicker to 60 mph (2.5 seconds versus 3.6), while both cars top out at an identical 190 mph, reflecting that the Cayenne is a performance SUV and the Q8 a performance SUV coupe.

Questions buyers ask

Which is cheaper, the Audi Q8 or Porsche Cayenne?

TrueCar (opens in a new tab) says the Q8, by $13,955 at MSRP.

Which has more horsepower in top trim, the Audi Q8 or Porsche Cayenne?

Revline Drive (opens in a new tab) says the Cayenne, at 1,136 hp versus the Q8's 640 hp.

Side-by-side matrix

The published fields that can change the decision.

Audi Q8: 1 records · Porsche Cayenne: 7 records.
Decision fieldAudi Q8Porsche Cayenne
Exact EPA records17
Model / option labels17
Drive layoutsAll-Wheel DriveAll-Wheel Drive
Engines / propulsion3L 6-cyl SIDI; Mild Hybrid3L 6-cyl SIDI, 4L 8-cyl SIDI
TransmissionsAutomatic (S8)Automatic (S8)
Fuel typesPremiumPremium
EPA classesStandard Sport Utility Vehicle 4WDStandard Sport Utility Vehicle 4WD
Combined efficiency19 MPG/MPGe17–19 MPG/MPGe
Electric rangeNot listedNot listed
Annual fuel / energy estimate$4200 per year$4200–4700 per year

Head to head

Audi Q8 vs. Porsche Cayenne: size, power, capability and price.

MeasureAudi Q8Porsche Cayenne
Starting price (KBB base)$78,195$89,050
Top trim price (KBB base)$88,795$161,050
Horsepower335 hp348-729 hp
Torque369 lb-ft310-590 lb-ft
0 to 60 mph5.5 sec3.5-5.7 sec
Curb weight4,949 lb4,678-5,664 lb
Length196 in194.1 in
Wheelbase118 in114 in
Cargo volume60.7 cu ft55-60.3 cu ft
Towing capacity7,700 lb6,614-7,716 lb
Seating5 seats5 seats
Basic warranty4 years4 years

Figures are ranges across each model’s trims from Kelley Blue Book records (2027 and 2026 model years); prices are KBB base prices.

Background on each vehicle

What public sources say about the Audi Q8 and the Porsche Cayenne.

2027 Audi Q8

The Audi Q8 is a mid-size luxury crossover SUV made by Audi that was launched in 2018. It is being produced at the Volkswagen Bratislava Plant.

Awards
Q8 won Auto Zeitung's Auto Trophy 2020 award under Luxury SUV category.

Source: Audi Q8 (Wikipedia)

Marketing. As part of the Q8 launch, in May 2018, Audi started a cinematic-styled miniseries that teased the Audi Q8 in five short episodes. The car made its first full appearance in the fifth episode, presented on a special microsite and shown to the public at the Audi China Brand Summit in Shenzhen.

NHTSA rated the 2025 Audi Q8 overall 5 of 5 stars, front crash 5 of 5 stars, side crash 5 of 5 stars, rollover 4 of 5 stars.

Recent recalls (2 campaigns across the latest model years)

  • December 2025, Back Over Prevention: Sensing System: Camera. Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply… Consequence: A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.
  • November 2025, Seat Belts:Front:Anchorage. Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2025 Audi RS Q8, Audi Q8, Audi Q7, and Audi SQ8 vehicles. The driver and front passenger seat belt buckles may be missing a rivet that secures the buckle to the seat belt… Consequence: A seat belt that is missing a rivet may not properly restrain an occupant during a crash, increasing the risk of injury.

Owners filed 3 complaints with NHTSA for the 2025 Audi Q8, most often about engine (1), unknown or other (1), air bags (1).

2026 Porsche Cayenne

The Porsche Cayenne is a series of automobiles manufactured by the German company Porsche since 2002. It is an E-segment luxury crossover SUV, and has been described as both a full-size and a mid-size vehicle. The first generation was known within Porsche as the Type 9PA (955/957) or E1.

Safety
Records In June 2021, a Porsche Cayenne Turbo GT lapped the Nürburgring Nordschleife in 7:38.925, driven by test driver Lars Kern.

Source: Porsche Cayenne (Wikipedia)

Engines. The second-generation Porsche Cayenne 92A went on sale in April–May 2010 as a 2011 model, with an official debut at the 2010 Geneva Motor Show. In preparation for the unveiling, the Cayenne production facility in Leipzig, Germany, closed in December 2009 to commence factory retooling for the new model, a process that took two to three months.

Variants. At its introduction in August 2017, Porsche released two versions of the third-generation Cayenne: the base model and the Cayenne S. The Cayenne Turbo was released a month later. The Cayenne S used the EA839 2.9-litre twin-turbo V6 engine, with larger brake rotors and calipers compared with the base model.

Recent recalls (4 campaigns across the latest model years)

  • December 2025, Back Over Prevention: Sensing System: Camera. Porsche Cars North America, Inc. (Porsche) is recalling certain 2019-2025 Cayenne, Cayenne E-Hybrid, 2020-2025 911, Taycan, 2024-2025 Panamera, and 2025 Panamera E-Hybrid vehicles. The rearview camera image may not display when the vehicle is placed in reverse. As such, these vehicles fail… Consequence: A rearview image that does not display properly reduces the driver's view behind the vehicle, increasing the risk of a crash.
  • September 2025, Fuel System, Gasoline:Delivery:Fuel Pump. Porsche Cars North America, Inc. (Porsche) is recalling certain 2024-2026 Panamera, Cayenne, and 2025 Panamera E-Hybrid vehicles. The fasteners securing the high pressure fuel pump may not be tightened properly, resulting in a fuel leak. Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire.
  • July 2024, Suspension:Front:Control Arm:Upper Arm. Porsche Cars North America, Inc. (Porsche) is recalling certain 2024 Cayenne vehicles. The driver's side front axle upper left control arm installed on the vehicles may have been installed with cracks, which can result in front axle control arm breaking and an… Consequence: A sudden loss of steering control increases the risk of a crash.

Owners filed 4 complaints with NHTSA for the 2026 Porsche Cayenne, most often about forward collision avoidance (4), lane departure (1), electrical system (1).

Open both dossiers

Resolve the exact engine, drive and EPA ID.

Comparison answer desk

12 answers for this exact pairing.

Q01Which is more efficient: the 2027 Audi Q8 or the 2026 Porsche Cayenne?
Efficiency

The 2027 Audi Q8 lists the higher combined-efficiency midpoint in this snapshot (19 vs. the 2026 Porsche Cayenne's 18 MPG/MPGe).

Source: FuelEconomy.gov current vehicle table
Q02How large is the efficiency gap between the 2027 Audi Q8 and the 2026 Porsche Cayenne?
Efficiency

1 combined MPG/MPGe separates the 2027 Audi Q8 from the 2026 Porsche Cayenne at the midpoint, a relative difference of 5.6%.

Source: FuelEconomy.gov current vehicle table
Q03Do the 2027 Audi Q8 and 2026 Porsche Cayenne share any drive layout?
Drivetrain

Yes. The 2027 Audi Q8 and the 2026 Porsche Cayenne both list All-Wheel Drive among their current drive designations.

Source: FuelEconomy.gov current vehicle table
Q04Do the 2027 Audi Q8 and 2026 Porsche Cayenne share an engine or propulsion description?
Powertrain

No. Their current engine or propulsion descriptions do not overlap. The 2027 Audi Q8 lists 3L 6-cyl SIDI; Mild Hybrid. The 2026 Porsche Cayenne lists 3L 6-cyl SIDI, 4L 8-cyl SIDI.

Source: FuelEconomy.gov current vehicle table
Q05Do the 2027 Audi Q8 and 2026 Porsche Cayenne share a transmission type?
Powertrain

Yes. The 2027 Audi Q8 and the 2026 Porsche Cayenne both list Automatic (S8) among their current transmissions.

Source: FuelEconomy.gov current vehicle table
Q06Do the 2027 Audi Q8 and 2026 Porsche Cayenne run on the same fuel type?
Fuel

Yes, entirely: the 2027 Audi Q8 and the 2026 Porsche Cayenne both run on Premium and nothing else in this snapshot.

Source: FuelEconomy.gov current vehicle table
Q07Do the 2027 Audi Q8 and 2026 Porsche Cayenne use comparable propulsion technology?
Electrification

Not by this snapshot's categorization: the 2027 Audi Q8 is Hybrid, the 2026 Porsche Cayenne is Conventional.

Source: FuelEconomy.gov current vehicle table
Q08Which is cheaper to run: the 2027 Audi Q8 or the 2026 Porsche Cayenne?
Ownership cost

The 2027 Audi Q8 lists the lower annual-cost estimate midpoint than the 2026 Porsche Cayenne ($4,200 vs. $4,450).

Source: FuelEconomy.gov current vehicle table
Q09What is the annual running-cost gap between the 2027 Audi Q8 and the 2026 Porsche Cayenne?
Ownership cost

$250 per year separates the 2027 Audi Q8 from the 2026 Porsche Cayenne at the midpoint under EPA's standardized assumptions.

Source: FuelEconomy.gov current vehicle table
Q10Which lineup has more internal efficiency variation: the 2027 Audi Q8 or the 2026 Porsche Cayenne?
Fuel economy

The 2026 Porsche Cayenne spans a wider combined-MPG range across its own current configurations than the 2027 Audi Q8 does (2 points vs. 0).

Source: FuelEconomy.gov current vehicle table
Q11Are the 2027 Audi Q8 and the 2026 Porsche Cayenne in the same EPA size class?
Dimensions

Yes: both the 2027 Audi Q8 and the 2026 Porsche Cayenne are certified only as Standard Sport Utility Vehicle 4WD, so their efficiency figures are compared inside the same class boundary EPA uses.

Source: FuelEconomy.gov current vehicle table
Q12Which offers more certified configurations, the 2027 Audi Q8 or the 2026 Porsche Cayenne?
Choosing a configuration

The 2026 Porsche Cayenne, with 7 certification records against the 2027 Audi Q8's 1.

Source: FuelEconomy.gov current vehicle table

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