2025 Audi RS 6 vs 2025 Porsche Cayenne Coupe
Comparison Overview
The 2025 Audi RS 6 arrives as the ultimate performance wagon, boasting a staggering 621 hp and 627 lb-ft of torque, making it an absolute powerhouse despite its thirst for fuel (17 combined MPG). Its aggressive stance and sheer muscle are intoxicating for drivers seeking unmatched straight-line speed wrapped in practicality. Contrast this with the 2025 Porsche Cayenne Coupe, which trades outright performance for accessibility, starting nearly $37,000 cheaper at $89,800 and delivering a respectable 348 hp. While the RS 6 offers superior hauling capacity with 30 cu ft of cargo space versus the Cayenne Coupe's 20.9 cu ft, the Porsche counters with slightly better efficiency at 19 combined MPG. This comparison pits raw, segment-leading power in the wagon format against superior mainstream crossover value and slightly better fuel economy.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Porsche Cayenne Coupe
The Porsche Cayenne Coupe offers better fuel economy at 19 combined MPG, which is preferable for daily commuting duties.
2025 Audi RS 6
The Audi RS 6 provides significantly more utility with 30 cu ft of cargo capacity compared to the Cayenne Coupe's 20.9 cu ft.
2025 Audi RS 6
The Audi RS 6's massive power advantage of 621 hp dwarfs the Cayenne Coupe's 348 hp, delivering a superior driving thrill.
2025 Porsche Cayenne Coupe
The Porsche Cayenne Coupe saves the buyer $36,800 on the MSRP while still providing an AWD platform with adequate performance.
Choose the Audi RS 6 if...
- You demand the absolute pinnacle of performance, evident in its 621 hp and 627 lb-ft of torque.
- You require maximum utility, benefitting from the wagon's large 30 cu ft cargo capacity.
- You prioritize driving dynamics and aggressive aesthetics over budgetary concerns.
Choose the Porsche Cayenne Coupe if...
- You want to save $36,800, as the Cayenne Coupe's MSRP starts at $89,800 versus the RS 6's $126,600.
- You commute extensively and prefer the slightly better efficiency, achieving 19 combined MPG.
- You prefer the commanding ride height and styling associated with a crossover body type.
Key Dimensions
| Dimension | Audi RS 6 | Porsche Cayenne Coupe |
|---|---|---|
| Length | 196.7" | 194.0" |
| Width | 76.8" | 78.1" |
| Height | 58.6" | 66.1" |
| Wheelbase | 115.3" | 114.0" |
Features Comparison
Safety
| Feature | Audi | Porsche |
|---|---|---|
| Lane Departure Warning | ✓ | ✓ |
| Pre-Collision Safety System | ✓ | ✓ |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front Side-Mounted Airbags | ✓ | ✓ |
| Dual Rear Side-Mounted Airbags | ✓ | ✓ |
| Front Head Airbags | ✓ | ✓ |
| Rear Head Airbags | ✓ | ✓ |
| Passenger Airbag Occupant Sensing Deactivation | ✓ | ✓ |
| Electronic Stability Control | ✓ | ✓ |
| Traction Control System | ✓ | ✓ |
| LATCH System | ✓ | ✓ |
| Rear Door Child Safety Locks | ✓ | ✓ |
| Anti-lock Brakes (ABS) | 4-Wheel | 4-Wheel |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Headlight Washers | ✓ | — |
| Integrated Turn Signal Mirrors | ✓ | ✓ |
| Front Headrests | 2 | 2 |
| Front Integrated Headrests | ✓ | ✓ |
| Rear Headrests | 3 | 2 |
| Rear Height Adjustable Headrests | ✓ | ✓ |
| Rear Center 3-Point Seatbelt | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Blind Spot Monitor | — | ✓ |
| Lane Keeping Assist System | — | ✓ |
| Rear Cross Traffic Alert | — | ✓ |
| Adaptive Headlights | — | ✓ |
| Cornering Lights | — | ✓ |
Engine
| Feature | Audi | Porsche |
|---|---|---|
| Base Engine Displacement | 4.0 L | 3.0 L |
| Number of Cylinders | V8 | V6 |
| Base Engine Type | mild hybrid | gas |
| Horsepower | 621 hp | 348 hp @ 5400 rpm |
| Torque | 627 lb-ft | 368 lb-ft @ 1450 rpm |
| Number of Valves | 32 | 24 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | Audi | Porsche |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 8-speed shiftable automatic |
| Drivetrain Type | all wheel drive | all wheel drive |
| [object Object] | ✓ | — |
| [object Object] | ✓ | — |
| Center Differential Type | — | Limited Slip |
| Hill Descent Control | — | ✓ |
Fuel
| Feature | Audi | Porsche |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 14/21 MPG | 17/23 MPG |
| EPA Fuel Economy (Combined) | 17 MPG | 19 MPG |
| EPA Driving Range (City/Highway) | 270.2/405.3 mi. | 402.9/545.1 mi. |
| Fuel Tank Capacity | 19.3 gal. | 23.7 gal. |
Comfort & Convenience
| Feature | Audi | Porsche |
|---|---|---|
| Push Button Start | ✓ | ✓ |
| Power Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Audio Controls on Steering Wheel | ✓ | ✓ |
| Electric Power Steering | ✓ | ✓ |
| Front View Camera | ✓ | ✓ |
| Side View Camera | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Wireless Charging Pad | ✓ | ✓ |
| Cruise Control | ✓ | ✓ |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | ✓ |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | ✓ |
| Front Seatback Storage | ✓ | ✓ |
| Leather Steering Wheel | ✓ | ✓ |
| Heated Steering Wheel | ✓ | — |
| Four Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts with Fan Control | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | ✓ |
| Automatic Parking Assist | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Rear Ventilation Ducts | — | ✓ |
| Cooled Storage Compartment | — | ✓ |
In Car Entertainment
| Feature | Audi | Porsche |
|---|---|---|
| Infotainment Display | 10.1 in | — |
| AM/FM Stereo | ✓ | ✓ |
| Premium Brand Speakers | Bang & Olufsen | — |
| Surround Audio | Discrete | — |
| Android Auto (Wireless) | ✓ | — |
| Apple CarPlay (Wireless) | ✓ | — |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | — |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 3 months |
| Stereo Power | — | 150W |
| Speaker System | — | 10 |
| Android Auto (Wired) | — | ✓ |
| Apple CarPlay (Wired) | — | ✓ |
| Auxiliary Audio Input | — | ✓ |
Power Feature
| Feature | Audi | Porsche |
|---|---|---|
| One-Touch Power Windows | 4 | 4 |
| Moonroof Type | 1st Row Power Glass Extended | 1st Row Fixed Glass Extended |
| Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | Audi | Porsche |
|---|---|---|
| Front Head Room | 38.3 in. | — |
| Front Leg Room | 41.3 in. | — |
| Front Shoulder Room | 57.8 in. | — |
| Seat Material: Premium Leather | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 10-way | 8-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | — |
| Driver Seat Memory Settings | 2 | 3 |
| Passenger Seat Power Adjustments | 10-way | 8-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Driver Seat Ventilation | ✓ | — |
| Passenger Seat Ventilation | ✓ | — |
| Seat Material: Leather | — | ✓ |
Rearseats
| Feature | Audi | Porsche |
|---|---|---|
| Rear Head Room | 39.5 in. | — |
| Rear Leg Room | 37.4 in. | — |
| Rear Shoulder Room | 56.5 in. | — |
| Split-Folding Rear Seatback | ✓ | ✓ |
| Folding Rear Seat Feature | ✓ | — |
| Pass-Thru Center Armrest | ✓ | — |
| Folding Center Armrest | — | ✓ |
Tires and Wheels
| Feature | Audi | Porsche |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 21 in | 20 x 10.5 in. |
| Tire Type | Performance | All Season |
| Tire Size | 275/35R21 | 295/45R20 |
| Spare Tire Type | — | Temporary |
| Spare Tire Location | — | Inside Mounted |
Suspension
| Feature | Audi | Porsche |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | Audi | Porsche |
|---|---|---|
| Basic Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Drivetrain Warranty | 4 yr./ 50000 mi. | 4 yr./ 50000 mi. |
| Corrosion/Rust Warranty | 12 yr./ unlimited mi. | 12 yr./ unlimited mi. |
| Roadside Assistance | 4 yr./ unlimited mi. | 4 yr./ 50000 mi. |
| EV Battery Warranty | — | 8 yr./ 100000 mi. |
Frequently Asked Questions
Common questions about comparing the 2025 Audi RS 6 and 2025 Porsche Cayenne Coupe.
How significant is the performance gap between these two AWD vehicles?
The performance gap is monumental; the Audi RS 6 produces 621 hp and 627 lb-ft of torque, while the Porsche Cayenne Coupe offers 348 hp and 368 lb-ft of torque, giving the Audi a difference of 273 horsepower.
Which vehicle is more practical for frequent long trips?
The Audi RS 6 is more practical for cargo thanks to its 30 cu ft capacity versus the Cayenne Coupe's 20.9 cu ft, making it better for hauling luggage.
Is the Audi RS 6 substantially larger than the Porsche Cayenne Coupe?
The RS 6 is longer at 196.7 inches compared to the Cayenne Coupe’s 194.0 inches, but the Cayenne Coupe is notably taller (66.1 inches vs. 58.6 inches), reflecting its crossover stance.
Do both vehicles require the same fuel type?
Yes, both the 2025 Audi RS 6 and the 2025 Porsche Cayenne Coupe specify that they require premium unleaded fuel for operation.
What is the real-world difference in fuel economy?
The Porsche Cayenne Coupe manages 19 combined MPG (17 city/23 highway), offering a slight edge over the power-hungry Audi RS 6, which achieves 17 combined MPG (14 city/21 highway).
What kind of transmissions do these two AWD competitors utilize?
Both vehicles employ an 8-speed shiftable automatic transmission to manage their respective power outputs and drive the all-wheel-drive systems.
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