MPGe is the distance a car covers on 33.7 kWh, the energy in a gallon of gasoline. Across 4 EPA ratings of the i7 since 2023 it has averaged 88.8 MPGe, and the 2026 model trails the 99.7 MPGe average of other electric cars rated 2024–2026. The EPA's own annual figure for it is $850.
Every BMW i7 version, compared
The BMW i7 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 | 86 / 93.3 | 2023–2026 | $775 |
What that actually costs
Against its rivals in the same model years, the Lucid Air is rated 146 MPGe, next to 88 MPGe for the 2026 i7. The i7 costs the most of them to run: $310 a year more than the Lucid Air.
| Measure | Value |
|---|---|
| Energy use (2026) | 38.3 kWh per 100 miles |
| Cost per mile | $0.065 |
| Charging per year | $781 |
| Charging over five years | $3,905 |
| Against other Electric cars, 2024–2026 | +$91 a year |
| EPA's own estimate | $850 a year |
City or highway — who is this car for
The 2026 BMW i7 gives up 8 MPGe in town: 93 on the highway against 85 in the city, $70 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 85 MPGe | $808 a year if you only drive in town |
| Highway | 93 MPGe | $738 a year if you mostly commute |
| Gap | +8 MPGe (9%) | Narrow — equally happy either way |
How the i7 changed over the years
The i7 peaked in 2024 at 90 MPGe (87 city, 95 highway) and was at its thirstiest in 2026 at 88 — 2 MPGe apart, or $18 a year in charging between buying one year and the other. The 2026 car does 88.
| Model year | Combined MPGe | City / Highway | Versions offered | Charging per year |
|---|---|---|---|---|
| 2026 | 85 / 93 | 1 | $781 | |
| 2025 | 85 / 93 | 1 | $781 | |
| 2024 | 87 / 95 | 1 | $763 | |
| 2023 | 87 / 92 | 1 | $773 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 4 EPA ratings of the BMW i7 — 1 engine across 2023–2026. 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 $850. Full method.
Frequently asked questions
What is the 2026 BMW i7 rated at?
88 MPGe combined, 85 city and 93 highway, per EPA. Across every year since 2023 the i7 has averaged 88.8 MPGe.
Is the 2026 i7 more efficient than the 2025?
About the same: 88 against 88 MPGe combined.
Which i7 year has the best efficiency?
The 2024, at 90 MPGe combined (87 city, 95 highway).
Does the i7 get better efficiency than the Lucid Air?
No: 88 MPGe for the 2026 i7 against 146 for the 2026 Lucid Air, about $310 a year more to run.
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