2026 head-to-head · Minivan
2026 Kia Carnival Hybrid vs Toyota Sienna 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 · 1.6L 4-cyl turbo · 6-speed dual-clutch · 32 MPG
The 2026 Toyota Sienna Hybrid is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $1,292 a year to fuel (36 MPG), versus $1,453 for the 2026 Kia Carnival Hybrid (32 MPG). That's roughly $161 a year, or about $807 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
- Kia Carnival Hybrid
- Toyota Sienna Hybrid
Side by side
| Kia Carnival Hybrid | Toyota Sienna Hybrid | |
|---|---|---|
| $1,453 | Your annual fuel cost | $1,292 |
| 32 MPG | Combined efficiency | 36 MPG |
| 34 MPG | City | 36 MPG |
| 31 MPG | Highway | 36 MPG |
| 275 g/mi | Tailpipe CO₂ (g/mi) | 246 g/mi |
| 6/10 | EPA fuel economy score | 7/10 |
| 6/10 | EPA greenhouse gas score | 7/10 |
| Hybrid | Powertrain | Hybrid |
| Regular gasoline | Fuel | Regular gasoline |
| 1.6L 4-cyl turbo | Engine / motor | 2.5L 4-cyl |
| 6-speed dual-clutch | Transmission | CVT |
| 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.
Kia Carnival Hybrid vs Toyota Sienna Hybrid across model years
- Kia Carnival Hybrid
- Toyota Sienna 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
Among 7 2026 minivans, the Kia Carnival Hybrid ranks 3rd and the Toyota Sienna Hybrid 2nd for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2026 Kia Carnival Hybrid or the 2026 Toyota Sienna Hybrid?
Measured by cost to drive, the Toyota Sienna Hybrid. The Kia Carnival Hybrid is rated 32 MPG combined and the Toyota Sienna Hybrid 36 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2026 Kia Carnival Hybrid vs. the Toyota Sienna Hybrid per year?
At 15,000 miles a year with $3.10/gal regular gas, about $1,453 for the Kia Carnival Hybrid and $1,292 for the Toyota Sienna Hybrid.
Kia Carnival Hybrid vs Toyota Sienna Hybrid in other years
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