BMW M8 Convertible MPG by year — every rating on record
The BMW M8 Convertible has a combined EPA fuel economy rating for 2 model years, from 2020 to 2021. Across those years its best rated version returned 17 mpg (2020) and its thirstiest returned 17 mpg (2020). The EPA record holds 2 configurations for this nameplate, most recently a Midsize Cars.
In the EPA record this nameplate also appears as M8 Convertible and M8 Gran Coupe. The figures below cover every one of them.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2020 | 1 | 17 mpg | 17 mpg | #118 of 124 (5th pct) | All-Wheel Drive | Premium | Midsize Cars |
| 2021 | 1 | 17 mpg | 17 mpg | #111 of 116 (4th pct) | All-Wheel Drive | Premium | Midsize Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The BMW M8 Convertible placed highest in 2021 at #111 of 116, and lowest in 2020 at #118 of 124. It spent 0 of its 2 ranked years in the top half of its class.
Every configuration on record
All 2 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | 4.4L 8-cyl All-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 15 | 21 | 17 | 676.5 | 17.5 | $4,550 | 520 | 3/10 |
| 2020 | 4.4L 8-cyl All-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 15 | 21 | 17 | 676.5 | 17.5 | $4,550 | 518 | 3/10 |
What M8 Convertible fuel costs over a year
At the EPA's 11,500 miles a year, the 2021 BMW M8 Convertible burns 676 to 676 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $2,029 | $2,029 | $0 |
| $3.50/gal | $2,368 | $2,368 | $0 |
| $4.00/gal | $2,706 | $2,706 | $0 |
EPA’s own estimate for the 2021 model year is $4,550 to $4,550 a year in fuel, or $11,500 more than the average new vehicle over five years.
How it compares with other Midsize Cars
Across the 483 nameplates EPA classifies as Midsize Cars, the median best combined rating is 25 mpg. At 17 mpg the BMW M8 Convertible is 8 mpg below the median, which is worth about $758 a year at $3.50 a gallon.
- All Midsize Cars rankings — every nameplate in the class, best to worst.
Other BMW nameplates
Every BMW model compared → — all nameplates ranked by best combined rating, with what each one costs a year.