2018 Kia Optima Plug-in Hybrid

40MPG
Combined
1
Trim
Updated February 27, 2026
Looking at the 2018 Kia Optima Plug-in Hybrid? This Sedan offers 40 combined MPG and comes with 1 available configurations. We break down the specs, safety data, and how it compares to the competition.
2018 Kia Optima Plug-in Hybrid Specifications
| Spec | Value |
|---|---|
| Combined MPG | 40 combined MPG |
| City MPG | 38 |
| Highway MPG | 43 |
| Body Style | Sedan |
| Fuel Type | PHEV |
| Drive | FWD |
| Available Trims | 1 |
Annual Fuel Cost
Based on EPA estimates, the 2018 Kia Optima Plug-in Hybrid costs approximately $1,100 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
Compare the 2018 Kia Optima Plug-in Hybrid
See how it stacks up against similar vehicles:
Other Model Years
- 2020 Kia Optima Plug-in Hybrid
- 2019 Kia Optima Plug-in Hybrid
- 2018 (this page)
- 2017 Kia Optima Plug-in Hybrid
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