BMW M8 vs Porsche 718 Spyder
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2025 Porsche 718 Spyder
Overview
| Spec | BMW M8Competition | Porsche 718 SpyderSpyder RS |
|---|---|---|
| Selected trim | Competition | Spyder RS |
| Body style | Coupe | Convertible |
| Drivetrain | all wheel drive | rear wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 7-speed automated manual |
| Engine type | gas | gas |
| Model year | 2025 | 2025 |
Pricing & market
| Spec | BMW M8Competition | Porsche 718 SpyderSpyder RS |
|---|---|---|
| MSRP | $138,800 (best) | $164,200 |
| Lowest listing price | $73,872 (best) | — |
| Median listing price | $88,185 (best) | — |
| Highest listing price | $102,498 (best) | — |
| For sale now | 2 (best) | 0 |
Fuel economy & range
| Spec | BMW M8Competition | Porsche 718 SpyderSpyder RS |
|---|---|---|
| Combined MPG | 17 MPG (best) | 16 MPG |
| City MPG | 15 MPG (best) | 14 MPG |
| Highway MPG | 22 MPG (best) | 19 MPG |
| Fuel tank | 20.1 gal (best) | 16.9 gal |
Performance
| Spec | BMW M8Competition | Porsche 718 SpyderSpyder RS |
|---|---|---|
| Horsepower | 617 hp (best) | 493 hp |
| Torque | 553 lb-ft (best) | 331 lb-ft |
| Engine size | 4.4 L (best) | 4 L |
| Cylinders | V8 | flat 6 |
Size & capability
| Spec | BMW M8Competition | Porsche 718 SpyderSpyder RS |
|---|---|---|
| Seating | 4 seats (best) | 2 seats |
| Doors | 2 | 2 |
| Cargo volume | 14.8 cu ft (best) | 8.6 cu ft |
| Payload | — | 655 lbs (best) |
| Curb weight | 4,560 lbs | 3,214 lbs (best) |
| Ground clearance | 4.8 in (best) | — |
| Wheelbase | 111.3 in (best) | 97.7 in |
| Length | 191.8 in (best) | 173.9 in |
| Width | 74.9 in (best) | 71.7 in |
| Height | 53.6 in (best) | 49.3 in |
Safety & recalls
| Spec | BMW M8Competition | Porsche 718 SpyderSpyder RS |
|---|---|---|
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | BMW M8 | Porsche 718 Spyder |
|---|---|---|
| 1 | Competition $138,800 MSRP(Currently comparing) | Spyder RS $164,200 MSRP(Currently comparing) |
| 2 | Competition $150,000 MSRP | — |
Live inventory
BMW M8 vs Porsche 718 Spyder FAQ
- Which is better: 2025 BMW M8 or 2025 Porsche 718 Spyder?
- It depends on priorities. OpenDealer compares 2025 BMW M8 vs 2025 Porsche 718 Spyder on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2025 BMW M8 or 2025 Porsche 718 Spyder?
- Based on starting MSRP, the 2025 BMW M8 starts lower at $138,800. Live BMW M8 listings start at $73,872.
- Which has better startingMsrp: 2025 BMW M8 or 2025 Porsche 718 Spyder?
- The 2025 BMW M8 leads on startingMsrp in this comparison (138,800).
- Which has better combinedMpg: 2025 BMW M8 or 2025 Porsche 718 Spyder?
- The 2025 BMW M8 leads on combinedMpg in this comparison (17).
- Which has better horsepower: 2025 BMW M8 or 2025 Porsche 718 Spyder?
- The 2025 BMW M8 leads on horsepower in this comparison (617).
- Which has better seats: 2025 BMW M8 or 2025 Porsche 718 Spyder?
- The 2025 BMW M8 leads on seats in this comparison (4).