MPGe is the distance a car covers on 33.7 kWh, the energy in a gallon of gasoline. Across 4 EPA ratings of the RZ since 2023 it has averaged 120.8 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 $625.
Every Lexus RZ version, compared
The Lexus RZ 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 | 131.3 / 109.3 | 2023–2026 | $569 |
What that actually costs
Against its rivals in the same model years, the Tesla Model Y is rated 131.5 MPGe, the Porsche Macan 102 MPGe and the Genesis GV70 93.5 MPGe, next to 126 MPGe for the 2026 RZ.
| Measure | Value |
|---|---|
| Energy use (2026) | 26.7 kWh per 100 miles |
| Cost per mile | $0.045 |
| Charging per year | $545 |
| Charging over five years | $2,725 |
| Against other Electric cars, 2024–2026 | −$145 a year |
| EPA's own estimate | $625 a year |
City or highway — who is this car for
The 2026 Lexus RZ does better in town than out of it: 136 in the city against 115 on the highway, $92 a year in favor of city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 136 MPGe | $506 a year if you only drive in town |
| Highway | 115 MPGe | $598 a year if you mostly commute |
| Gap | -21 MPGe (-15%) | Reversed — it does better in town than on the open road |
How the RZ changed over the years
The RZ peaked in 2026 at 126 MPGe (136 city, 115 highway) and was at its thirstiest in 2023 at 107 — 19 MPGe apart, or $98 a year in charging between buying one year and the other. The biggest single-year change came in 2024: 107 to 125 MPGe.
| Model year | Combined MPGe | City / Highway | Versions offered | Charging per year |
|---|---|---|---|---|
| 2026 | 136 / 115 | 1 | $545 | |
| 2025 | 137 / 112 | 1 | $551 | |
| 2024 | 137 / 112 | 1 | $551 | |
| 2023 | 115 / 98 | 1 | $643 |
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 Lexus RZ — 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 $625. Full method.
Frequently asked questions
What is the 2026 Lexus RZ rated at?
126 MPGe combined, 136 city and 115 highway, per EPA. Across every year since 2023 the RZ has averaged 120.8 MPGe.
Is the 2026 RZ more efficient than the 2025?
Yes: 126 against 125 MPGe combined, about $6 a year less to run.
Which RZ year has the best efficiency?
The 2026, at 126 MPGe combined (136 city, 115 highway), which is also the latest model year we hold.
Does the RZ get better efficiency than the Tesla Model Y?
No: 126 MPGe for the 2026 RZ against 131.5 for the 2026 Tesla Model Y, about $23 a year more to run.
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