Vans and special purpose · Hybrid · model year 2026
Kia Carnival Hybrid vs Toyota Sienna Hybrid
For model year 2026, the Toyota Sienna Hybrid gets 36 MPG combined and the Kia Carnival Hybrid 32: a 4 MPG lead, or 12% on the lower figure.
Side by side
| Measure | Kia Carnival Hybrid | Toyota Sienna Hybrid |
|---|---|---|
| Combined fuel economy (best version) | 32 MPG | 36 MPG |
| City | 34 MPG | 36 MPG |
| Highway | 31 MPG | 36 MPG |
| Annual fuel cost | $2,100 | $1,850 |
| Tailpipe CO2 | 275 g/mile | 246 g/mile |
| Lowest rated version | 32 MPG | 35 MPG |
| Rated versions | 1 | 2 |
| Rank in class (best combined rating) | 2nd of 7 | 1st of 7 |
| Class | Vans and special purpose | Vans and special purpose |
| Powertrain | Hybrid | Hybrid |
Better figure in bold; each model's most efficient version.
Fuel economy and cost
Under the file's assumptions the Toyota Sienna Hybrid costs about $1,850 a year to fuel and the Kia Carnival Hybrid about $2,100: $250 a year apart on 15,000 miles.
Where each one ranks
Within their class the Kia Carnival Hybrid is 2nd of 7 vans and special purpose, in the top quarter, ahead of 83% of the others. The Toyota Sienna Hybrid is the most efficient of the 7 vans and special purpose rated that year.
The Kia Carnival Hybrid has 1 rated version, from 32 to 32 MPG. The Toyota Sienna Hybrid has 2, from 35 to 36 MPG. For the most efficient versions, the Kia Carnival Hybrid is rated 3 higher in the city (34 against 31), while the Toyota Sienna Hybrid is rated the same in the city and on the highway (36).
The two versions closest in rating are Carnival Hybrid: 1.6 L, 4 cyl hybrid, Automatic (AM-S6), FWD at 32 MPG and Sienna AWD: 2.5 L, 4 cyl hybrid, Automatic (AV-S6), AWD at 35, 3 MPG apart.
Ratings by model year
Both models are in the data for 2 model years, 2025 to 2026. The Kia Carnival Hybrid has the higher best rating in 0 of them and the Toyota Sienna Hybrid in 2. The widest gap, 4 MPG, was in 2026, when the Toyota Sienna Hybrid led.
| Model year | Kia Carnival Hybrid | Toyota Sienna Hybrid | Gap |
|---|---|---|---|
| 2026 | 32 | 36 | -4 |
| 2025 | 33 | 36 | -3 |
| 2024 | not in data | 36 | n/a |
| 2023 | not in data | 36 | n/a |
| 2022 | not in data | 36 | n/a |
| 2021 | not in data | 36 | n/a |