From fuel-efficient cars
Alternatives to the 2026 BMW M850i xDrive Convertible
The cars next to it on fuel-efficient cars: the same kind of car, with official EPA figures close to its own. Open any of them for its window sticker, or put two side by side.
- 286
Combined MPG· $4,100 fuel a year20 MPG$4,100fuel a year - 287
2026 Porsche 911 Carrera GTS
Minicompact · Rear-Wheel Drive · Gas
3.6 L 6-cyl turbo 17 city · 24 hwyCombined MPG· $4,100 fuel a year20 MPG$4,100fuel a year - 288
2026 Porsche 911 Carrera S Cabriolet
Minicompact · Rear-Wheel Drive · Gas
3.0 L 6-cyl turbo 17 city · 24 hwyCombined MPG· $4,100 fuel a year20 MPG$4,100fuel a year - 289
2025 Mercedes-Benz AMG C63 S E Performance
Subcompact · All-Wheel Drive · Plug-in hybrid
Plug-in hybrid 2.0 L 4-cyl turbo 19 city · 22 hwyCombined MPG· $4,100 fuel a year20 MPG$4,100fuel a year - 290
2026 Porsche 911 Carrera T Cabriolet
Minicompact · Rear-Wheel Drive · Gas
3.0 L 6-cyl turbo 17 city · 25 hwyCombined MPG· $4,350 fuel a year19 MPG$4,350fuel a year - 291
Combined MPG· $4,350 fuel a year19 MPG$4,350fuel a year - 293
Combined MPG· $4,350 fuel a year19 MPG$4,350fuel a year - 294 Combined MPG· $4,350 fuel a year19 MPG$4,350fuel a year
- 295 Combined MPG· $4,350 fuel a year19 MPG$4,350fuel a year
- 296
Combined MPG· $4,350 fuel a year19 MPG$4,350fuel a year - 297
2027 Mercedes-Benz S580 4matic
Large · All-Wheel Drive · Hybrid
Hybrid 4.0 L 8-cyl turbo 16 city · 24 hwyCombined MPG· $4,350 fuel a year19 MPG$4,350fuel a year - 298
Combined MPG· $3,550 fuel a year19 MPG$3,550fuel a year