Lexus RZ 450e (18 inch wheels) MPG by year — every rating on record
The Lexus RZ 450e (18 inch wheels) has a combined EPA fuel economy rating for 4 model years, from 2023 to 2026. Across those years its best rated version returned 110 mpg (2026) and its thirstiest returned 107 mpg (2023). The EPA record holds 4 configurations for this nameplate, most recently a Small Sport Utility Vehicle 4WD.
In the EPA record this nameplate also appears as RZ 450e (18 inch wheels) and RZ 450e (18 inch Wheels). The figures below cover every one of them.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2023 | 1 | 107 mpg | 107 mpg | #4 of 166 (98th pct) | All-Wheel Drive | Electricity | Small Sport Utility Vehicle 4WD |
| 2024 | 1 | 107 mpg | 107 mpg | #4 of 176 (98th pct) | All-Wheel Drive | Electricity | Small Sport Utility Vehicle 4WD |
| 2025 | 1 | 107 mpg | 107 mpg | #4 of 194 (98th pct) | All-Wheel Drive | Electricity | Small Sport Utility Vehicle 4WD |
| 2026 | 1 | 110 mpg | 110 mpg | #11 of 188 (95th pct) | All-Wheel Drive | Electricity | Small Sport Utility Vehicle 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Lexus RZ 450e (18 inch wheels) placed highest in 2023 at #4 of 166, and lowest in 2026 at #11 of 188. It spent 4 of its 4 ranked years in the top half of its class.
Every configuration on record
All 4 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | Range | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | All-Wheel Drive Automatic (A1) Electricity | EV | 120 | 100 | 110 | 104.5 | 0.1 | $700 | 264 mi | n/a | 10/10 |
| 2025 | All-Wheel Drive Automatic (A1) Electricity | EV | 115 | 98 | 107 | 107.5 | 0.1 | $700 | 220 mi | n/a | 10/10 |
| 2024 | All-Wheel Drive Automatic (A1) Electricity | EV | 115 | 98 | 107 | 107.5 | 0.1 | $700 | 220 mi | n/a | 10/10 |
| 2023 | All-Wheel Drive Automatic (A1) Electricity | EV | 115 | 98 | 107 | 107.5 | 0.1 | $700 | 220 mi | n/a | 10/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 1 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2025 → 2026 | 107 → 110 mpg | +3 mpg | 105 gal |
What RZ 450e (18 inch wheels) fuel costs over a year
At the EPA's 11,500 miles a year, the 2026 Lexus RZ 450e (18 inch wheels) burns 105 to 105 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $314 | $314 | $0 |
| $3.50/gal | $366 | $366 | $0 |
| $4.00/gal | $418 | $418 | $0 |
EPA’s own estimate for the 2026 model year is $700 to $700 a year in fuel, or $7,750 less than the average new vehicle over five years.
How it compares with other Small Sport Utility Vehicle 4WD
Across the 311 nameplates EPA classifies as Small Sport Utility Vehicle 4WD, the median best combined rating is 27 mpg. At 110 mpg the Lexus RZ 450e (18 inch wheels) is 83 mpg better the median, which is worth about $1,125 a year at $3.50 a gallon.
- All Small Sport Utility Vehicle 4WD rankings — every nameplate in the class, best to worst.
Other Lexus nameplates
Every Lexus model compared → — all nameplates ranked by best combined rating, with what each one costs a year.