MPGe is the distance a car covers on 33.7 kWh, the energy in a gallon of gasoline. Across 2 EPA ratings of the B-Class since 2014 it has averaged 84 MPGe, and the 2015 model trails the 105.1 MPGe average of other electric cars rated 2013–2015. The EPA's own annual figure for it is $900.
Every Mercedes-Benz B-Class version, compared
The Mercedes-Benz B-Class was rated in a single specification, so its consumption does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $0.17 a kilowatt-hour.
| Version | Combined MPGe | City / Highway | Years | Charging per year |
|---|---|---|---|---|
| Electric | 85 / 82.5 | 2014–2015 | $818 |
What that actually costs
| Measure | Value |
|---|---|
| Energy use (2015) | 40.1 kWh per 100 miles |
| Cost per mile | $0.068 |
| Charging per year | $818 |
| Charging over five years | $4,090 |
| Against other Electric cars, 2013–2015 | +$163 a year |
| EPA's own estimate | $900 a year |
City or highway — who is this car for
The 2015 Mercedes-Benz B-Class does better in town than out of it: 85 in the city against 82 on the highway, $30 a year in favor of city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2015) | 85 MPGe | $808 a year if you only drive in town |
| Highway | 82 MPGe | $838 a year if you mostly commute |
| Gap | -3 MPGe (-4%) | Reversed — it does better in town than on the open road |
How the B-Class changed over the years
Combined figure across the 2 model years the B-Class was rated in, all of them at 84 MPGe.
| Model year | Combined MPGe | City / Highway | Versions offered | Charging per year |
|---|---|---|---|---|
| 2015 | 85 / 82 | 1 | $818 | |
| 2014 | 85 / 83 | 1 | $818 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 2 EPA ratings of the Mercedes-Benz B-Class — 1 engine across 2014–2015. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $0.17 a kilowatt-hour, against EPA's own estimate of $900. Full method.
Frequently asked questions
What is the 2015 Mercedes-Benz B-Class rated at?
84 MPGe combined, 85 city and 82 highway, per EPA. Across every year since 2014 the B-Class has averaged 84 MPGe.
Is the 2015 B-Class more efficient than the 2014?
About the same: 84 against 84 MPGe combined.
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