2025 Audi S5 vs 2025 Porsche 718 Cayman
Comparison Overview
The most significant divergence between the 2025 Audi S5 and the 2025 Porsche 718 Cayman is the $14,900 MSRP difference, with the Audi starting at $57,900 versus the Porsche's $72,800 entry price. Power metrics also clearly favor the S5, which delivers 349 hp and 369 lb-ft of torque compared to the Cayman's 300 hp and 280 lb-ft of torque. This performance edge is notable, despite the Cayman achieving a slightly better combined MPG of 24 to the S5's 23. Practicality strongly favors the S5 hatchback, offering 21.8 cu ft of cargo space versus the Cayman's 15 cu ft. The Audi utilizes an 8-speed automatic with AWD, while the Porsche employs a 7-speed automated manual paired exclusively with RWD. Furthermore, the S5 is physically larger at 187.2 inches long compared to the Cayman's 172.4 inches, impacting maneuverability and interior volume.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Audi S5
The Audi S5 offers superior practicality with 21.8 cu ft of cargo space and all-wheel drive, beneficial for varied weather conditions.
2025 Audi S5
As a hatchback, the S5 provides significantly more accessible cargo capacity (21.8 cu ft vs. 15 cu ft) and has four doors standard.
2025 Porsche 718 Cayman
The Porsche 718 Cayman's dedicated rear-wheel-drive layout and precise 7-speed automated manual transmission offer a more focused driving dynamic for purists.
2025 Audi S5
The Audi S5 provides substantially higher horsepower (349 hp vs. 300 hp) for a $14,900 lower starting price.
Choose the Audi S5 if...
- You require 349 hp and 369 lb-ft of torque in a more accessible package.
- Practical cargo volume exceeding 21 cu ft is necessary for daily utility.
- All-wheel drive (AWD) and an 8-speed automatic transmission are preferred for daily driving.
Choose the Porsche 718 Cayman if...
- You prioritize a dedicated rear-wheel-drive (RWD) platform over AWD for driving dynamics.
- A 7-speed automated manual gearbox is more engaging than a standard automatic.
- The best possible fuel efficiency, 24 MPG combined, is a critical metric.
Key Dimensions
| Dimension | Audi S5 | Porsche 718 Cayman |
|---|---|---|
| Length | 187.2" | 172.4" |
| Width | 72.6" | 70.9" |
| Height | 54.6" | 51.0" |
| Wheelbase | 111.2" | 97.4" |
Features Comparison
Safety
| Feature | Audi | Porsche |
|---|---|---|
| Lane Departure Warning | ✓ | — |
| Lane Keeping Assist System | ✓ | — |
| Pre-Collision Safety System | ✓ | — |
| Post-Collision Safety System | ✓ | ✓ |
| Dual Front 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 Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | — |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | — |
| Front Headrests | 2 | 2 |
| Front Integrated Headrests | ✓ | ✓ |
| Rear Headrests | 3 | — |
| Rear Height Adjustable Headrests | ✓ | — |
| Rear Center 3-Point Seatbelt | ✓ | — |
| Engine Immobilizer | ✓ | ✓ |
| Xenon High-Intensity Discharge Headlights | — | ✓ |
| Adaptive Headlights | — | ✓ |
| Cornering Lights | — | ✓ |
| Headlight Washers | — | ✓ |
| Anti-Theft Alarm System (Remote) | — | ✓ |
Engine
| Feature | Audi | Porsche |
|---|---|---|
| Base Engine Displacement | 3.0 L | 2.0 L |
| Number of Cylinders | V6 | flat 4 |
| Base Engine Type | gas | gas |
| Horsepower | 349 hp @ 6300 rpm | 300 hp @ 6500 rpm |
| Torque | 369 lb-ft @ 3200 rpm | 280 lb-ft @ 1950 rpm |
| Number of Valves | 24 | 16 |
| 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 | 7-speed automated manual |
| Drivetrain Type | all wheel drive | rear wheel drive |
| Center Differential Type | Limited Slip | — |
Fuel
| Feature | Audi | Porsche |
|---|---|---|
| Fuel Type | premium unleaded (recommended) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 20/29 MPG | 21/27 MPG |
| EPA Fuel Economy (Combined) | 23 MPG | 24 MPG |
| EPA Driving Range (City/Highway) | 306.0/443.7 mi. | 298.2/383.4 mi. |
| Fuel Tank Capacity | 15.3 gal. | 14.2 gal. |
Comfort & Convenience
| Feature | Audi | Porsche |
|---|---|---|
| Push Button Start | ✓ | — |
| Tilt and Telescopic Steering Wheel | ✓ | ✓ |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Audio Controls on Steering Wheel | ✓ | — |
| Electric Power Steering | ✓ | ✓ |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Adaptive Cruise Control | ✓ | — |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | — |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | — |
| Front Seatback Storage | ✓ | — |
| Leather Steering Wheel | ✓ | ✓ |
| Heated Steering Wheel | ✓ | — |
| Three Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts with Fan Control | ✓ | — |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | — |
| Cargo Floor Mats | ✓ | — |
| Cruise Control | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
| Interior Air Filtration | — | ✓ |
In Car Entertainment
| Feature | Audi | Porsche |
|---|---|---|
| Infotainment Display | 10.1 in | — |
| AM/FM Stereo | ✓ | ✓ |
| Premium Brand Speakers | Bang & Olufsen | — |
| Stereo Power | 755W | 150W |
| Speaker System | 19 | 8 |
| Surround Audio | Discrete | — |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wireless) | ✓ | — |
| USB Port | ✓ | ✓ |
| Auxiliary Audio Input | ✓ | — |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 3 months |
| Speed Sensitive Volume Control | ✓ | — |
| Apple CarPlay (Wired) | — | ✓ |
| Memory Card Slot | — | ✓ |
Power Feature
| Feature | Audi | Porsche |
|---|---|---|
| One-Touch Power Windows | 4 | 2 |
| Moonroof Type | 1st Row Power Glass Extended | — |
| Remote Keyless Entry | ✓ | ✓ |
| Heated Mirrors | ✓ | ✓ |
Frontseats
| Feature | Audi | Porsche |
|---|---|---|
| Front Head Room | 37.8 in. | — |
| Front Leg Room | 41.3 in. | — |
| Front Shoulder Room | 55.7 in. | — |
| Seat Material: Leather/Sueded Microfiber | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 8-way | 2-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | — |
| Passenger Seat Power Adjustments | 8-way | 2-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Seat Massage Function | ✓ | — |
| Seat Material: Leather | — | ✓ |
| Driver Seat Manual Adjustments | — | 4-way |
| Passenger Seat Manual Adjustments | — | 4-way |
Rearseats
| Feature | Audi | Porsche |
|---|---|---|
| Rear Head Room | 37.0 in. | — |
| Rear Leg Room | 35.1 in. | — |
| Rear Shoulder Room | 54.5 in. | — |
| Split-Folding Rear Seatback | ✓ | — |
| Folding Center Armrest | ✓ | — |
Tires and Wheels
| Feature | Audi | Porsche |
|---|---|---|
| Wheel Finish | Painted Alloy | — |
| Wheel Diameter | 19 in | — |
| Tire Type | Performance | Performance |
| Tire Size | ✓ | 265/45R Z |
| Spare Tire Type | Temporary | — |
| Spare Tire Location | Inside Mounted | — |
| Wheel Material | — | Alloy |
| Wheel Size | — | 18 x 9.5 in. |
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. |
Frequently Asked Questions
Common questions about comparing the 2025 Audi S5 and 2025 Porsche 718 Cayman.
How does the powertrain difference affect real-world driving between these two models?
The Audi S5 produces 49 more horsepower (349 hp vs. 300 hp) and utilizes an 8-speed automatic for smoother, high-torque shifts, while the Cayman's RWD setup and 7-speed automated manual aim for sharper, driver-focused engagement.
Is the Porsche 718 Cayman significantly smaller than the Audi S5?
Yes, the dimensions confirm this; the Cayman is 172.4 inches long, making it over 14 inches shorter than the 187.2-inch Audi S5, which contributes to its smaller interior and cargo volume.
Do both vehicles require premium fuel, and what is the efficiency difference?
The Audi S5 recommends premium unleaded and achieves 23 MPG combined (20/29), whereas the Porsche 718 Cayman requires premium and marginally surpasses the Audi with 24 MPG combined (21/27).
Which vehicle is the better choice for carrying passengers and luggage?
The S5 is the superior choice due to its hatchback body style offering 21.8 cu ft of cargo capacity, compared to the Cayman's 15 cu ft in its coupe configuration.
What accounts for the $14,900 difference in starting MSRP?
The price gap reflects the Porsche's positioning as a specialized sports coupe, often factoring in its specialized RWD engineering and 7-speed automated manual transmission versus the more mainstream, higher-output, AWD-equipped Audi S5 hatchback.
Is the Audi S5's higher torque output noticeable when accelerating?
The S5's 369 lb-ft of torque, substantially more than the Cayman's 280 lb-ft, should translate into stronger off-the-line responsiveness and easier passing power during everyday driving scenarios.
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