2025 BMW 5 Series vs 2025 Porsche 718 Cayman
Comparison Overview
The 2025 BMW 5 Series bursts onto the scene as the sophisticated executive sedan, delivering refined power with 255 hp and a practical 31 MPG combined, making long commutes manageable. Contrast this with the thrilling 2025 Porsche 718 Cayman, a mid-engine sports coupe built purely for driver engagement, boasting 300 hp and razor-sharp dynamics. While the BMW offers more real estate at 199.2 inches long and grants a generous 18.4 cubic feet of cargo space, the Cayman focuses intently on agility, evidenced by its lower height of 51.0 inches. The price gap is substantial, with the 5 Series starting at $58,700 compared to the Cayman's $72,800 entry point, reflecting their divergent missions: luxury utility versus uncompromised sporting performance. This comparison pits Bavarian comfort against Stuttgart exhilaration, separated by 7 MPG in efficiency and a significant 45 hp output difference.
Size Comparison
Performance
Fuel Efficiency
Full Specifications
Our Verdicts
2025 BMW 5 Series
The BMW 5 Series wins for commuters due to its significantly better fuel economy, achieving 31 MPG combined compared to the Cayman's 24 MPG.
2025 BMW 5 Series
The 5 Series is the only viable choice, offering a usable sedan body and a larger 18.4 cu ft of cargo capacity compared to the Cayman's two-seat layout.
2025 Porsche 718 Cayman
The Porsche 718 Cayman provides superior raw performance credentials, leveraging 300 hp and a specialized 7-speed automated manual transmission for maximum driver involvement.
2025 BMW 5 Series
The BMW 5 Series offers a much lower initial investment at $58,700 while still providing excellent power and efficiency for daily driving needs.
Choose the BMW 5 Series if...
- You prioritize daily driving efficiency and need 31 MPG combined fuel economy.
- Your budget requires a starting MSRP under $60,000, specifically $58,700.
- You require a practical sedan layout with 18.4 cu ft of cargo space for luggage or errands.
Choose the Porsche 718 Cayman if...
- Absolute driving purity and handling are your top priority, supported by 300 hp.
- You desire a lower-slung, more aggressive stance, standing only 51.0 inches tall.
- You are willing to pay $72,800 for a dedicated, mid-engine, two-seater sports machine.
Key Dimensions
| Dimension | BMW 5 Series | Porsche 718 Cayman |
|---|---|---|
| Length | 199.2" | 172.4" |
| Width | 74.8" | 70.9" |
| Height | 59.6" | 51.0" |
| Wheelbase | 117.9" | 97.4" |
Features Comparison
Safety
| Feature | BMW | Porsche |
|---|---|---|
| Blind Spot Monitor | ✓ | — |
| 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 |
| Brake Drying | ✓ | — |
| Front Ventilated Disc Brakes | ✓ | ✓ |
| Rear Ventilated Disc Brakes | ✓ | ✓ |
| Brake Preparation System | ✓ | ✓ |
| Brake Assist | ✓ | ✓ |
| Tire Pressure Monitoring System | ✓ | ✓ |
| Automatic Headlights | ✓ | ✓ |
| Headlight Delay-Off | ✓ | ✓ |
| LED Headlights | ✓ | — |
| Self-Leveling Headlights | ✓ | — |
| Daytime Running Lights | ✓ | ✓ |
| Integrated Turn Signal Mirrors | ✓ | — |
| Front Headrests | 2 | 2 |
| Front Height Adjustable Headrests | ✓ | — |
| Rear Headrests | 3 | — |
| Rear Height Adjustable Headrests | ✓ | — |
| Rear Center 3-Point Seatbelt | ✓ | — |
| Anti-Theft Alarm System (Remote) | ✓ | ✓ |
| Xenon High-Intensity Discharge Headlights | — | ✓ |
| Adaptive Headlights | — | ✓ |
| Cornering Lights | — | ✓ |
| Headlight Washers | — | ✓ |
| Front Integrated Headrests | — | ✓ |
| Engine Immobilizer | — | ✓ |
Engine
| Feature | BMW | Porsche |
|---|---|---|
| Base Engine Displacement | 2.0 L | 2.0 L |
| Number of Cylinders | inline 4 | flat 4 |
| Base Engine Type | mild hybrid | gas |
| Horsepower | 255 hp @ 4700 rpm | 300 hp @ 6500 rpm |
| Torque | 295 lb-ft @ 1600 rpm | 280 lb-ft @ 1950 rpm |
| Number of Valves | 16 | 16 |
| Camshaft Type | Double overhead cam (DOHC) | Double overhead cam (DOHC) |
| Variable Valve Timing | Variable | Variable |
| Fuel Injection Type | ✓ | ✓ |
Drive Train
| Feature | BMW | Porsche |
|---|---|---|
| Transmission Type | 8-speed shiftable automatic | 7-speed automated manual |
| Drivetrain Type | rear wheel drive | rear wheel drive |
Fuel
| Feature | BMW | Porsche |
|---|---|---|
| Fuel Type | premium unleaded (required) | premium unleaded (required) |
| EPA Fuel Economy (City/Highway) | 28/35 MPG | 21/27 MPG |
| EPA Fuel Economy (Combined) | 31 MPG | 24 MPG |
| EPA Driving Range (City/Highway) | 445.2/556.5 mi. | 298.2/383.4 mi. |
| Fuel Tank Capacity | 15.9 gal. | 14.2 gal. |
Comfort & Convenience
| Feature | BMW | Porsche |
|---|---|---|
| Push Button Start | ✓ | — |
| Power Tilt and Telescopic Steering Wheel | ✓ | — |
| Transmission Controls on Steering Wheel | ✓ | ✓ |
| Cruise Control on Steering Wheel | ✓ | — |
| Audio Controls on Steering Wheel | ✓ | — |
| Electric Power Steering | ✓ | ✓ |
| 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 | ✓ | — |
| Leather Steering Wheel | ✓ | ✓ |
| Dual Zone Climate Control | ✓ | ✓ |
| Rear Ventilation Ducts | ✓ | — |
| Interior Air Filtration | ✓ | ✓ |
| Dual Vanity Mirrors | ✓ | ✓ |
| Auto-Dimming Rearview Mirror | ✓ | ✓ |
| Turn Signal Indicators in Mirrors | ✓ | — |
| Tilt and Telescopic Steering Wheel | — | ✓ |
In Car Entertainment
| Feature | BMW | Porsche |
|---|---|---|
| Infotainment Display | 14.9 in | — |
| AM/FM Stereo | ✓ | ✓ |
| Premium Speaker Brand | Harman/Kardon | — |
| Stereo Power | 205W | 150W |
| Speaker System | 12 | 8 |
| Subwoofer Count | 2 | — |
| Android Auto (Wired) | ✓ | — |
| Apple CarPlay (Wired) | ✓ | ✓ |
| USB Port | ✓ | ✓ |
| USB Port with External Media Control | ✓ | ✓ |
| Satellite Radio | ✓ | ✓ |
| Satellite Radio Trial Period | 12 months | 3 months |
| Speed Sensitive Volume Control | ✓ | — |
| Memory Card Slot | — | ✓ |
Power Feature
| Feature | BMW | Porsche |
|---|---|---|
| One-Touch Power Windows | 4 | 2 |
| Moonroof Type | 1st Row Power Glass | — |
| Keyless Entry | ✓ | — |
| Heated Mirrors | ✓ | ✓ |
| Remote Keyless Entry | — | ✓ |
Frontseats
| Feature | BMW | Porsche |
|---|---|---|
| Front Head Room | 38.8 in. | — |
| Front Leg Room | 41.3 in. | — |
| Front Shoulder Room | 59.2 in. | — |
| Seat Material: Leatherette | ✓ | — |
| Front Seat Type: Sport | ✓ | ✓ |
| Driver Seat Power Adjustments | 8-way | 2-way |
| Driver Seat Manual Adjustments | 2-way | 4-way |
| Driver Seat Height Adjustment | ✓ | ✓ |
| Driver Seat Lumbar Support | Power | — |
| Driver Seat Thigh Extension | ✓ | — |
| Driver Seat Memory Settings | 2 | — |
| Passenger Seat Power Adjustments | 8-way | 2-way |
| Passenger Seat Manual Adjustments | 2-way | 4-way |
| Passenger Seat Height Adjustment | ✓ | ✓ |
| Passenger Seat Lumbar Support | Power | — |
| Passenger Seat Thigh Extension | ✓ | — |
| Passenger Seat Memory Settings | 2 | — |
| Driver Seat Heating | Multi-level | Multi-level |
| Passenger Seat Heating | Multi-level | Multi-level |
| Seat Material: Leather | — | ✓ |
Rearseats
| Feature | BMW | Porsche |
|---|---|---|
| Rear Head Room | 37.5 in. | — |
| Rear Leg Room | 37.0 in. | — |
| Rear Shoulder Room | 56.9 in. | — |
| Split-Folding Rear Seatback | ✓ | — |
| Folding Center Armrest | ✓ | — |
Tires and Wheels
| Feature | BMW | Porsche |
|---|---|---|
| Wheel Material | Alloy | Alloy |
| Wheel Size | 19 x 8.5 in | 18 x 9.5 in. |
| Tire Type | All Season | Performance |
| Tire Size | 245/45R19 | 265/45R Z |
Suspension
| Feature | BMW | Porsche |
|---|---|---|
| Four-Wheel Independent Suspension | ✓ | ✓ |
| Front Stabilizer Bar | ✓ | ✓ |
| Rear Stabilizer Bar | ✓ | ✓ |
Warranty
| Feature | BMW | 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. |
| Complimentary Scheduled Maintenance | 3 yr./ 36000 mi. | — |
Frequently Asked Questions
Common questions about comparing the 2025 BMW 5 Series and 2025 Porsche 718 Cayman.
How much more expensive is the 2025 Porsche 718 Cayman than the BMW 5 Series?
The Porsche 718 Cayman carries a premium price tag, starting at $72,800. This makes it $14,100 more expensive than the 2025 BMW 5 Series, which starts at $58,700.
Which car is more powerful, and how does that affect performance?
The Porsche 718 Cayman is significantly more powerful, producing 300 hp compared to the BMW 5 Series' 255 hp, suggesting superior straight-line acceleration and track capability for the Cayman.
Is the BMW 5 Series a better choice for fuel economy?
Yes, the BMW 5 Series is markedly more efficient, achieving a combined 31 MPG versus the Porsche Cayman's 24 MPG combined rating, saving on premium unleaded fuel costs over time.
Can the Porsche 718 Cayman serve as a practical vehicle for carrying passengers or gear?
No, the 718 Cayman is a strict two-seater coupe with limited utility, offering only 15 cu ft of cargo capacity, whereas the 5 Series sedan provides seating for four or five and 18.4 cu ft of trunk space.
What is the primary difference in driving style suggested by the transmissions?
The BMW uses a traditional 8-speed shiftable automatic geared towards smooth, luxurious shifts, while the Porsche employs a quicker 7-speed automated manual focusing on rapid, performance-oriented gear changes.
How do the physical dimensions of these two vehicles compare?
The BMW 5 Series is substantially larger, measuring 199.2 inches in length and 74.8 inches in width for superior cabin room. Conversely, the Cayman is smaller and lower, at only 172.4 inches long and 51.0 inches high, optimizing its track dimensions.
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