BMW 640i Convertible MPG by year — every rating on record
The BMW 640i Convertible has a combined EPA fuel economy rating for 7 model years, from 2012 to 2018. Across those years its best rated version returned 24 mpg (2013) and its thirstiest returned 23 mpg (2012). The EPA record holds 7 configurations for this nameplate, most recently a Subcompact Cars.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2012 | 1 | 23 mpg | 23 mpg | #50 of 76 (35th pct) | Rear-Wheel Drive | Premium | Compact Cars |
| 2013 | 1 | 24 mpg | 24 mpg | #20 of 71 (73th pct) | Rear-Wheel Drive | Premium | Subcompact Cars |
| 2014 | 1 | 23 mpg | 23 mpg | #31 of 63 (52th pct) | Rear-Wheel Drive | Premium | Subcompact Cars |
| 2015 | 1 | 24 mpg | 24 mpg | #35 of 71 (51th pct) | Rear-Wheel Drive | Premium | Subcompact Cars |
| 2016 | 1 | 23 mpg | 23 mpg | #40 of 71 (44th pct) | Rear-Wheel Drive | Premium | Subcompact Cars |
| 2017 | 1 | 23 mpg | 23 mpg | #48 of 88 (46th pct) | Rear-Wheel Drive | Premium | Subcompact Cars |
| 2018 | 1 | 23 mpg | 23 mpg | #47 of 82 (43th pct) | Rear-Wheel Drive | Premium | Subcompact Cars |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The BMW 640i Convertible placed highest in 2013 at #20 of 71, and lowest in 2012 at #50 of 76. It spent 3 of its 7 ranked years in the top half of its class.
Every configuration on record
All 7 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 29 | 23 | 500.0 | 12.9 | $3,350 | 378 | 5/10 |
| 2017 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 29 | 23 | 500.0 | 12.9 | $3,350 | 377 | 5/10 |
| 2016 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 30 | 23 | 500.0 | 12.9 | $3,350 | 378 | 5/10 |
| 2015 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 30 | 24 | 479.2 | 12.4 | $3,250 | 376 | 6/10 |
| 2014 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 20 | 30 | 23 | 500.0 | 12.9 | $3,350 | 378 | 6/10 |
| 2013 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged | 20 | 30 | 24 | 479.2 | 12.4 | $3,250 | 375 | 6/10 |
| 2012 | 3.0L 6-cyl Rear-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged | 20 | 30 | 23 | 500.0 | 12.9 | $3,350 | 386.39130434782606 | n/a |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 2 of 4 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2012 → 2013 | 23 → 24 mpg | +1 mpg | 479 gal |
| 2013 → 2014 | 24 → 23 mpg | -1 mpg | 500 gal |
| 2014 → 2015 | 23 → 24 mpg | +1 mpg | 479 gal |
| 2015 → 2016 | 24 → 23 mpg | -1 mpg | 500 gal |
What 640i Convertible fuel costs over a year
At the EPA's 11,500 miles a year, the 2018 BMW 640i Convertible burns 500 to 500 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 | $1,500 | $1,500 | $0 |
| $3.50/gal | $1,750 | $1,750 | $0 |
| $4.00/gal | $2,000 | $2,000 | $0 |
EPA’s own estimate for the 2018 model year is $3,350 to $3,350 a year in fuel, or $5,500 more than the average new vehicle over five years.
How it compares with other Subcompact Cars
Across the 461 nameplates EPA classifies as Subcompact Cars, the median best combined rating is 24 mpg. At 23 mpg the BMW 640i Convertible is 1 mpg below the median, which is worth about $73 a year at $3.50 a gallon.
- All Subcompact 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.