2025 Audi RS 3 vs 2025 Porsche 718 Cayman
Comparison Overview
The most significant numerical divergence between the 2025 Audi RS 3 and the 2025 Porsche 718 Cayman is the $9,400 difference in MSRP, with the Audi starting at $63,400 versus the Porsche's $72,800. Performance metrics show the RS 3 offers substantially more output, delivering 394 hp and 369 lb-ft of torque compared to the Cayman's 300 hp and 280 lb-ft of torque. Conversely, the 718 Cayman provides nearly double the utility with 15.0 cu ft of cargo space, whereas the RS 3 sedan accommodates only 8.3 cu ft. Fuel economy is marginally better for the Porsche, achieving a combined 24 MPG versus the Audi's 23 MPG, although both require premium unleaded fuel. Dimensionally, the RS 3 is longer at 178.5 inches, while the Cayman is significantly lower at 51.0 inches in height, impacting aerodynamics and visual presence. These specifications clearly position the RS 3 as the power/utility sedan and the 718 Cayman as the lower-slung, more specialized coupe.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 Audi RS 3
The 2025 Audi RS 3, being a sedan with AWD and superior rear passenger/cargo space (8.3 cu ft), is better suited for daily commuting needs than the two-seat coupe.
2025 Audi RS 3
The Audi RS 3 is the only vehicle of the two with a functional rear seat, despite its limited 8.3 cu ft of cargo capacity.
2025 Porsche 718 Cayman
The Porsche 718 Cayman's lower 51.0-inch height, RWD layout, and dedicated mid-engine coupe structure typically appeal more to driving purists than the RS 3's sedan platform.
2025 Audi RS 3
The Audi RS 3 offers 94 more horsepower for $9,400 less than the 2025 Porsche 718 Cayman, yielding a superior power-to-price ratio.
Choose the Audi RS 3 if...
- You require the practicality of a four-door sedan structure for daily utility.
- Maximum straight-line performance is prioritized, given its 394 hp versus the competitor's 300 hp.
- You prefer the stability and traction provided by an all-wheel-drive system for varied road conditions.
Choose the Porsche 718 Cayman if...
- Superior dedicated cargo volume is necessary, as it offers 15.0 cu ft compared to the RS 3's 8.3 cu ft.
- A lower center of gravity is desired, evidenced by its 51.0-inch height versus the Audi's 54.8 inches.
- You prefer a dedicated rear-wheel-drive platform optimized for precise handling dynamics.
Key Dimensions
| Dimension | Audi RS 3 | Porsche 718 Cayman |
|---|---|---|
| Length | 178.5" | 172.4" |
| Width | 72.9" | 70.9" |
| Height | 54.8" | 51.0" |
| Wheelbase | 103.6" | 97.4" |
Features Comparison
Safety
| Feature | Audi | Porsche |
|---|---|---|
| Blind Spot Monitor | ✓ | — |
| Lane Departure Warning | ✓ | — |
| Lane Keeping Assist System | ✓ | — |
| Rear Cross Traffic Alert | ✓ | — |
| 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 | ✓ | ✓ |
| LED Headlights | ✓ | — |
| Adaptive Headlights | ✓ | ✓ |
| Daytime Running Lights | ✓ | ✓ |
| Headlight Washers | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | — |
| Front Headrests | 2 | 2 |
| Front Integrated Headrests | ✓ | ✓ |
| Rear Headrests | 3 | — |
| Rear Height Adjustable Headrests | ✓ | — |
| Rear Center 3-Point Seatbelt | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Engine Immobilizer | ✓ | ✓ |
| Brake Preparation System | — | ✓ |
| Headlight Delay-Off | — | ✓ |
| Xenon High-Intensity Discharge Headlights | — | ✓ |
| Cornering Lights | — | ✓ |
Engine
| Feature | Audi | Porsche |
|---|---|---|
| Base Engine Displacement | 2.5 L | 2.0 L |
| Number of Cylinders | inline 5 | flat 4 |
| Base Engine Type | gas | gas |
| Horsepower | 394 hp | 300 hp @ 6500 rpm |
| Torque | 369 lb-ft | 280 lb-ft @ 1950 rpm |
| Number of Valves | 20 | 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 | 7-speed automated manual | 7-speed automated manual |
| Drivetrain Type | all wheel drive | rear wheel drive |
| [object Object] | ✓ | — |
| [object Object] | ✓ | — |
| Hill Descent Control | ✓ | — |
Fuel
| Feature | Audi | Porsche |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 20/30 MPG | 21/27 MPG |
| EPA Fuel Economy (Combined) | 23 MPG | 24 MPG |
| EPA Driving Range (City/Highway) | 290.0/435.0 mi. | 298.2/383.4 mi. |
| Fuel Tank Capacity | 14.5 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 | ✓ | ✓ |
| Front View Camera | ✓ | — |
| Side View Camera | ✓ | — |
| Rear View Camera | ✓ | ✓ |
| Front Parking Sensors | ✓ | ✓ |
| Rear Parking Sensors | ✓ | ✓ |
| Driver Assisted Parking Assist | ✓ | — |
| Wireless Charging Pad | ✓ | — |
| Adaptive Cruise Control | ✓ | — |
| Universal Remote Transmitter | ✓ | ✓ |
| Front Cupholders | ✓ | ✓ |
| Rear Cupholders | ✓ | — |
| Front Door Pockets | ✓ | ✓ |
| Rear Door Pockets | ✓ | — |
| Front Seatback Storage | ✓ | — |
| Leather Steering Wheel | ✓ | ✓ |
| Three Zone Climate Control | ✓ | — |
| Rear Ventilation Ducts | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | — |
| Cruise Control | — | ✓ |
| Dual Zone Climate Control | — | ✓ |
In Car Entertainment
| Feature | Audi | Porsche |
|---|---|---|
| Infotainment Display | 10.1 in | — |
| AM/FM Stereo | ✓ | ✓ |
| Premium Speaker Brand | Sonos | — |
| Stereo Power | 680W | 150W |
| Speaker System | 15 | 8 |
| Surround Audio | Discrete | — |
| Android Auto (Wireless) | ✓ | — |
| Apple CarPlay (Wireless) | ✓ | — |
| USB Port | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 3 months | 3 months |
| Apple CarPlay (Wired) | — | ✓ |
| USB Port with External Media Control | — | ✓ |
| Memory Card Slot | — | ✓ |
Power Feature
| Feature | Audi | Porsche |
|---|---|---|
| One-Touch Power Windows | 4 | 2 |
| Moonroof Type | 1st Row Power Glass Extended | — |
| Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Remote Keyless Entry | — | ✓ |
Frontseats
| Feature | Audi | Porsche |
|---|---|---|
| Front Head Room | 36.8 in. | — |
| Front Leg Room | 41.2 in. | — |
| Front Shoulder Room | 54.8 in. | — |
| Seat Material: Premium Leather | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 8-way | 2-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | — |
| Driver Seat Memory Settings | 2 | — |
| 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 Material: Leather | — | ✓ |
| Driver Seat Manual Adjustments | — | 4-way |
| Passenger Seat Manual Adjustments | — | 4-way |
Rearseats
| Feature | Audi | Porsche |
|---|---|---|
| Rear Head Room | 36.6 in. | — |
| Rear Leg Room | 35.2 in. | — |
| Rear Shoulder Room | 53.0 in. | — |
| Split-Folding Rear Seatback | ✓ | — |
| Folding Rear Seat Feature | ✓ | — |
| Pass-Thru 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 |
| 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 RS 3 and 2025 Porsche 718 Cayman.
How much more powerful is the 2025 Audi RS 3 than the Porsche 718 Cayman?
The 2025 Audi RS 3 produces 394 hp and 369 lb-ft of torque from its turbocharged inline-five engine. This output is substantially higher than the 2025 Porsche 718 Cayman, which generates 300 hp and 280 lb-ft of torque.
Which vehicle offers better practicality for storage and passengers?
The Porsche 718 Cayman offers significantly more open storage space with 15.0 cu ft of cargo capacity, compared to the Audi RS 3's 8.3 cu ft. However, only the RS 3 is a true four-door sedan capable of seating more than two passengers.
What is the difference in purchase price between these two models?
There is a substantial $9,400 difference in the Manufacturer's Suggested Retail Price (MSRP). The 2025 Audi RS 3 has an MSRP of $63,400, while the 2025 Porsche 718 Cayman starts at $72,800.
Are the fuel economy figures significantly different for these premium sports cars?
The fuel economy ratings are close, with the Porsche achieving 24 combined MPG versus the Audi's 23 combined MPG. Both vehicles mandate the use of premium unleaded fuel for optimal operation.
Does the drivetrain configuration affect daily usability?
Yes, the RS 3 utilizes all-wheel drive (AWD), generally favoring stability and inclement weather performance, whereas the 718 Cayman employs a rear-wheel-drive (RWD) layout, often preferred for balanced performance driving.
How do the exterior dimensions reflect their body styles?
The Audi RS 3 is longer overall at 178.5 inches, maintaining a traditional sedan profile. The 718 Cayman is noticeably lower, measuring only 51.0 inches in height, emphasizing its dedicated two-door coupe design.
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