MPGe is the distance a car covers on 33.7 kWh, the energy in a gallon of gasoline. Across 3 EPA ratings of the Prologue since 2024 it has averaged 102.3 MPGe, and the 2026 model beats the 99.7 MPGe average of other electric cars rated 2024–2026. The EPA's own annual figure for it is $750.
Every Honda Prologue version, compared
The Honda Prologue 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 | 111 / 93 | 2024–2026 | $671 |
What that actually costs
Against its rivals in the same model years, the Tesla Model X is rated 101.5 MPGe, the Audi e-tron 115 MPGe and the BMW iX 100.7 MPGe, next to 104 MPGe for the 2026 Prologue.
| Measure | Value |
|---|---|
| Energy use (2026) | 32.4 kWh per 100 miles |
| Cost per mile | $0.055 |
| Charging per year | $661 |
| Charging over five years | $3,305 |
| Against other Electric cars, 2024–2026 | −$29 a year |
| EPA's own estimate | $750 a year |
City or highway — who is this car for
The 2026 Honda Prologue does better in town than out of it: 113 in the city against 94 on the highway, $124 a year in favor of city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 113 MPGe | $608 a year if you only drive in town |
| Highway | 94 MPGe | $732 a year if you mostly commute |
| Gap | -19 MPGe (-17%) | Reversed — it does better in town than on the open road |
How the Prologue changed over the years
The Prologue peaked in 2026 at 104 MPGe (113 city, 94 highway) and was at its thirstiest in 2024 at 99 — 5 MPGe apart, or $33 a year in charging between buying one year and the other. The biggest single-year change came in 2025: 99 to 104 MPGe.
| Model year | Combined MPGe | City / Highway | Versions offered | Charging per year |
|---|---|---|---|---|
| 2026 | 113 / 94 | 1 | $661 | |
| 2025 | 113 / 94 | 1 | $661 | |
| 2024 | 107 / 91 | 1 | $694 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 3 EPA ratings of the Honda Prologue — 1 engine across 2024–2026. 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 $750. Full method.
Frequently asked questions
What is the 2026 Honda Prologue rated at?
104 MPGe combined, 113 city and 94 highway, per EPA. Across every year since 2024 the Prologue has averaged 102.3 MPGe.
Is the 2026 Prologue more efficient than the 2025?
About the same: 104 against 104 MPGe combined.
Which Prologue year has the best efficiency?
The 2026, at 104 MPGe combined (113 city, 94 highway), which is also the latest model year we hold.
Does the Prologue get better efficiency than the Tesla Model X?
Yes: 104 MPGe for the 2026 Prologue against 101.5 for the 2026 Tesla Model X, about $16 a year less to run.
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