2018 Infiniti Q50
25MPG
Combined
4
Trims
Updated February 27, 2026
Looking at the 2018 Infiniti Q50? This Sedan offers 22–25 combined MPG depending on trim and comes with 4 available configurations. We break down the specs, safety data, and how it compares to the competition.
2018 Infiniti Q50 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 22–25 combined MPG depending on trim |
| City MPG | 23 |
| Highway MPG | 30 |
| Body Style | Sedan |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 4 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| 6 cyl | 20/29/23 | 3.0L 6cyl | Automatic (S7) |
| 4 cyl | 23/30/25 | 2.0L 4cyl | Automatic (S7) |
| 6 cyl | 19/27/22 | 3.0L 6cyl | Automatic (S7) |
| 4 cyl | 22/28/24 | 2.0L 4cyl | Automatic (S7) |
Annual Fuel Cost
Based on EPA estimates, the 2018 Infiniti Q50 costs approximately $2,500 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2018 Infiniti Q50
See how it stacks up against similar vehicles:
Other Model Years
- 2024 Infiniti Q50
- 2023 Infiniti Q50
- 2022 Infiniti Q50
- 2021 Infiniti Q50
- 2020 Infiniti Q50
- 2019 Infiniti Q50
- 2018 (this page)
- 2017 Infiniti Q50
- 2016 Infiniti Q50
- 2015 Infiniti Q50
- 2014 Infiniti Q50
Check Vehicle History
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