Against 344 other Hybrid cars rated 2024–2026, the RS Q8 trails their 28 mpg average by 12 mpg, about $1,029 a year.
Every Audi RS Q8 engine, compared
The Audi RS Q8 was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 4L 8-cyl Hybrid | 13.3 / 19.4 | 2020–2026 | $2,494 |
What that actually costs
Against its rivals in the same model years, the Land Rover Defender gets 18.3 mpg, the Lexus TX 25.5 mpg and the Toyota Grand Highlander 30 mpg, next to 16 mpg for the 2026 RS Q8. The RS Q8 costs the most of them to run: $1,120 a year more than the Toyota Grand Highlander.
| Measure | Value |
|---|---|
| Cost per mile (2026) | $0.200 |
| Fuel per year | $2,400 |
| Fuel over five years | $12,000 |
| Against other Hybrid cars, 2024–2026 | +$1,029 a year |
| EPA's own estimate | $5,000 a year |
City or highway — who is this car for
The 2026 Audi RS Q8 gives up 6 mpg in town: 20 on the highway against 14 in the city, $823 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2026) | 14 mpg | $2,743 a year if you only drive in town |
| Highway | 20 mpg | $1,920 a year if you mostly commute |
| Gap | +6 mpg (43%) | Wide — this car dislikes traffic |
How the RS Q8 changed over the years
The RS Q8 peaked in 2026 at 16 mpg (14 city, 20 highway) and was at its thirstiest in 2024 at 15 — 1 mpg apart, or $160 a year in fuel between buying one year and the other.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 14 / 20 | 1 | $2,400 | |
| 2025 | 14 / 20 | 1 | $2,400 | |
| 2024 | 13 / 19 | 1 | $2,560 | |
| 2023 | 13 / 20 | 1 | $2,400 | |
| 2022 | 13 / 19 | 1 | $2,560 | |
| 2021 | 13 / 19 | 1 | $2,560 | |
| 2020 | 13 / 19 | 1 | $2,560 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 7 EPA ratings of the Audi RS Q8 — 1 engine across 2020–2026. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $5,000. Full method.
Frequently asked questions
What mpg does the 2026 Audi RS Q8 get?
16 mpg combined, 14 city and 20 highway, per EPA. Across every year since 2020 the RS Q8 has averaged 15.4 mpg.
Is the 2026 RS Q8 more efficient than the 2025?
About the same: 16 against 16 mpg combined.
Which RS Q8 year has the best gas mileage?
The 2026, at 16 mpg combined (14 city, 20 highway), which is also the latest model year we hold.
Does the RS Q8 get better gas mileage than the Land Rover Defender?
No: 16 mpg for the 2026 RS Q8 against 18.3 for the 2026 Land Rover Defender, about $302 a year more to run.
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