2026 head-to-head · Midsize Car
2026 BMW 5 Series Plug-in Hybrid vs Mercedes-Benz E-Class Plug-in Hybrid
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 · 68 MPGe + 25 MPG
The 2026 BMW 5 Series Plug-in Hybrid is the cheaper one to run. Driving 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, it costs about $1,714 a year to fuel (68 MPGe + 25 MPG), versus $1,793 for the 2026 Mercedes-Benz E-Class Plug-in Hybrid (60 MPGe + 24 MPG). That's roughly $80 a year, or about $399 over five years.
Your numbers
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Fuel cost over 10 years
- BMW 5 Series Plug-in Hybrid
- Mercedes-Benz E-Class Plug-in Hybrid
Side by side
| BMW 5 Series Plug-in Hybrid | Mercedes-Benz E-Class Plug-in Hybrid | |
|---|---|---|
| $1,714 | Your annual fuel cost | $1,793 |
| 68 MPGe + 25 MPG | Combined efficiency | 60 MPGe + 24 MPG |
| 65 MPGe / 22 MPG | City | 55 MPGe / 22 MPG |
| 73 MPGe / 28 MPG | Highway | 68 MPGe / 27 MPG |
| 49 kWh | Electricity use (kWh/100 mi) | 56 kWh |
| 430 mi | Driving range | 420 mi |
| 34 mi | All-electric range | 44 mi |
| 98 cu ft | Passenger volume | 100 cu ft |
| 14 cu ft | Cargo volume | 13 cu ft |
| 133 g/mi | Tailpipe CO₂ (g/mi) | 115 g/mi |
| 7/10 | EPA fuel economy score | 7/10 |
| 9/10 | EPA greenhouse gas score | 9/10 |
| 2 hrs | Charge time at 240V | 2.8 hrs |
| Plug-in hybrid | Powertrain | Plug-in hybrid |
| Premium gas + electricity | Fuel | Premium gas + electricity |
| 3.0L 6-cyl turbo | Engine / motor | 3.0L 6-cyl turbo |
| 8-speed automatic | Transmission | 9-speed automatic |
| AWD | Drivetrain | AWD |
✓ 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.
BMW 5 Series Plug-in Hybrid vs Mercedes-Benz E-Class Plug-in Hybrid across model years
- BMW 5 Series Plug-in Hybrid
- Mercedes-Benz E-Class Plug-in Hybrid
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
The BMW 5 Series Plug-in Hybrid goes farther between stops: about 430 miles on a full tank and charge, compared with 420 miles for the Mercedes-Benz E-Class Plug-in Hybrid.
Per EPA interior volume figures, the BMW 5 Series Plug-in Hybrid has more cargo space (14 vs. 13 cu ft).
Among 31 2026 midsize cars, the BMW 5 Series Plug-in Hybrid ranks 16th and the Mercedes-Benz E-Class Plug-in Hybrid 18th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 BMW 5 Series Plug-in Hybrid or the 2026 Mercedes-Benz E-Class Plug-in Hybrid?
Measured by cost to drive, the BMW 5 Series Plug-in Hybrid. The BMW 5 Series Plug-in Hybrid is rated 68 MPGe + 25 MPG combined and the Mercedes-Benz E-Class Plug-in Hybrid 60 MPGe + 24 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 BMW 5 Series Plug-in Hybrid vs. the Mercedes-Benz E-Class Plug-in Hybrid per year?
At 15,000 miles a year with 18¢/kWh electricity and $3.95/gal premium gas, about $1,714 for the BMW 5 Series Plug-in Hybrid and $1,793 for the Mercedes-Benz E-Class Plug-in Hybrid.
Which has more range?
The BMW 5 Series Plug-in Hybrid: about 430 miles versus 420 miles.
Which has more cargo space?
The BMW 5 Series Plug-in Hybrid, with 14 cu ft of luggage volume versus 13 cu ft (EPA interior volume index).
BMW 5 Series Plug-in Hybrid vs Mercedes-Benz E-Class Plug-in Hybrid in other years
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