BMW
840i Convertible
U.S. fuel economy and specifications from the EPA.
25Best combined MPG2021 model year
2020–2026Model years7 with EPA ratings
7Rated configurationsDrive, transmission and engine
3 LEngine sizeDisplacement
Best combined MPG by model year
The highest EPA rating among each year's configurations.
2020 24 MPG
2021 25 MPG
2022 25 MPG
2023 24 MPG
2024 24 MPG
2025 24 MPG
2026 24 MPG
1 configuration.
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 24
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 24
- Engine displacement
- 3.0 L
- Cylinders
- 6
2025 EPA test-car reference
Engine ratings from the EPA test-car reference.
| Engine rated hp | Displacement | Transmission | Drive |
|---|---|---|---|
| 335 | 3.0 L | Semi-Automatic · 8 gears | 2-Wheel Drive, Rear |
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 24
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 24
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 25
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 25
- Engine displacement
- 3.0 L
- Cylinders
- 6
Rear-Wheel Drive · Automatic (S8)
Premium gasoline · Subcompact Cars
- Combined MPG
- 24
- Engine displacement
- 3.0 L
- Cylinders
- 6