2020 head-to-head · Midsize Car
2020 Honda Insight vs Kia Optima Plug-in Hybrid
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 2.0L 4-cyl · 6-speed dual-clutch · 101 MPGe + 41 MPG
The 2020 Honda Insight is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and 18¢/kWh electricity, it costs about $894 a year to fuel (52 MPG), versus $996 for the 2020 Kia Optima Plug-in Hybrid (101 MPGe + 41 MPG). That's roughly $102 a year, or about $509 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Honda Insight
- Kia Optima Plug-in Hybrid
Side by side
| Honda Insight | Kia Optima Plug-in Hybrid | |
|---|---|---|
| $894 | Your annual fuel cost | $996 |
| 52 MPG | Combined efficiency | 101 MPGe + 41 MPG |
| 55 MPG | City | 103 MPGe / 39 MPG |
| 49 MPG | Highway | 100 MPGe / 44 MPG |
| — | Electricity use (kWh/100 mi) | 33 kWh |
| — | Driving range | 630 mi |
| — | All-electric range | 28 mi |
| 98 cu ft | Passenger volume | 105 cu ft |
| 15 cu ft | Cargo volume | 10 cu ft |
| 170 g/mi | Tailpipe CO₂ (g/mi) | 97 g/mi |
| 10/10 | EPA fuel economy score | 10/10 |
| 10/10 | EPA greenhouse gas score | 10/10 |
| — | Charge time at 240V | 2.7 hrs |
| Hybrid | Powertrain | Plug-in hybrid |
| Regular gasoline | Fuel | Regular gas + electricity |
| 1.5L 4-cyl | Engine / motor | 2.0L 4-cyl |
| CVT | Transmission | 6-speed dual-clutch |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Honda Insight vs Kia Optima Plug-in Hybrid across model years
- Honda Insight
- Kia Optima Plug-in Hybrid
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Kia Optima Plug-in Hybrid has more passenger space (105 vs. 98 cu ft); the Honda Insight has more cargo space (15 vs. 10 cu ft).
Among 64 2020 midsize cars, the Honda Insight ranks 8th and the Kia Optima Plug-in Hybrid 11th for lowest fuel cost.
The powertrains differ: the Honda Insight is a full hybrid, while the Kia Optima Plug-in Hybrid is a plug-in hybrid.
Frequently asked questions
Which is more fuel-efficient, the 2020 Honda Insight or the 2020 Kia Optima Plug-in Hybrid?
Measured by cost to drive, the Honda Insight. The Honda Insight is rated 52 MPG combined and the Kia Optima Plug-in Hybrid 101 MPGe + 41 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2020 Honda Insight vs. the Kia Optima Plug-in Hybrid per year?
At 15,000 miles a year with $3.10/gal regular gas and 18¢/kWh electricity, about $894 for the Honda Insight and $996 for the Kia Optima Plug-in Hybrid.
Which has more cargo space?
The Honda Insight, with 15 cu ft of luggage volume versus 10 cu ft (EPA interior volume index).
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