2016 head-to-head · Midsize Car
2016 Audi A6 Diesel vs Mercedes-Benz B-Class Electric Drive
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
AWD · 3.0L 6-cyl turbo · 8-speed automatic · 30 MPG
FWD · Electric motor (132 kW) · Single-speed · 84 MPGe · 87 mi
The 2016 Mercedes-Benz B-Class Electric Drive is the cheaper one to run. Driving 15,000 miles a year with $3.70/gal diesel fuel and 18¢/kWh electricity, it costs about $1,085 a year to fuel (84 MPGe), versus $1,850 for the 2016 Audi A6 Diesel (30 MPG). That's roughly $765 a year, or about $3,823 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Audi A6 Diesel
- Mercedes-Benz B-Class Electric Drive
Side by side
| Audi A6 Diesel | Mercedes-Benz B-Class Electric Drive | |
|---|---|---|
| $1,850 | Your annual fuel cost | $1,085 |
| 30 MPG | Combined efficiency | 84 MPGe |
| 25 MPG | City | 85 MPGe |
| 38 MPG | Highway | 82 MPGe |
| — | Electricity use (kWh/100 mi) | 40.2 kWh |
| — | Driving range | 87 mi |
| 98 cu ft | Passenger volume | 90 cu ft |
| 16 cu ft | Cargo volume | 22 cu ft |
| 343 g/mi | Tailpipe CO₂ (g/mi) | 0 g/mi |
| 7/10 | EPA fuel economy score | 10/10 |
| 6/10 | EPA greenhouse gas score | 10/10 |
| — | Charge time at 240V | 3.5 hrs |
| Diesel | Powertrain | Electric |
| Diesel | Fuel | Electricity |
| 3.0L 6-cyl turbo | Engine / motor | Electric motor (132 kW) |
| 8-speed automatic | Transmission | Single-speed |
| AWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Audi A6 Diesel vs Mercedes-Benz B-Class Electric Drive across model years
- Audi A6 Diesel
- Mercedes-Benz B-Class Electric Drive
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Audi A6 Diesel has more passenger space (98 vs. 90 cu ft); the Mercedes-Benz B-Class Electric Drive has more cargo space (22 vs. 16 cu ft).
Among 67 2016 midsize cars, the Audi A6 Diesel ranks 34th and the Mercedes-Benz B-Class Electric Drive 5th for lowest fuel cost.
Because the Mercedes-Benz B-Class Electric Drive is fully electric, it has no tailpipe emissions and its running cost depends almost entirely on your electricity rate. Cheap overnight home charging widens its advantage over the Audi A6 Diesel; relying on DC fast chargers can erase it.
Frequently asked questions
Which is more fuel-efficient, the 2016 Audi A6 Diesel or the 2016 Mercedes-Benz B-Class Electric Drive?
Measured by cost to drive, the Mercedes-Benz B-Class Electric Drive. The Audi A6 Diesel is rated 30 MPG combined and the Mercedes-Benz B-Class Electric Drive 84 MPGe (EPA, most efficient configuration of each).
How much does it cost to fuel the 2016 Audi A6 Diesel vs. the Mercedes-Benz B-Class Electric Drive per year?
At 15,000 miles a year with $3.70/gal diesel fuel and 18¢/kWh electricity, about $1,850 for the Audi A6 Diesel and $1,085 for the Mercedes-Benz B-Class Electric Drive.
Which has more cargo space?
The Mercedes-Benz B-Class Electric Drive, with 22 cu ft of luggage volume versus 16 cu ft (EPA interior volume index).
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