2026 Porsche 911 Carrera GTS Cabriolet vs 2027 BMW M4 Competition Coupe
| EPA figure | 2026 Porsche 911 Carrera GTS Cabriolet | 2027 BMW M4 Competition Coupe |
|---|---|---|
| Model year | 2026 | 2027 |
| Body · drive | Minicompact · Rear-Wheel Drive · Gas | Subcompact · Rear-Wheel Drive · Gas |
| Combined MPG | 19 | 19 |
| City / highway MPG | 17 / 23 | 16 / 23 |
| Fuel a year | $4,350 | $4,350 |
| Tailpipe CO₂ (g/mi) | 467 | 470 |
| Engine | 3.6 L 6-cyl turbo | 3.0 L 6-cyl turbo |
| Transmission | Automatic (AM-S8) | Automatic (S8) |
▲ marks the better official figure on that line: more range, MPG or MPGe; less fuel cost or CO₂. From fueleconomy.gov.