Hybrid minivan test: Edmunds compares the Kia Carnival Hybrid and Toyota Sienna
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Automotive website Edmunds compares two hybrid minivans on factors including value, fuel economy and safety.
It was a bold move when the current-generation Toyota Sienna debuted five years ago exclusively as a hybrid.
It may have sacrificed acceleration bragging rights to its V6-powered minivan competitors, but its fuel economy smoked them with a 13- to 14-mpg advantage that could translate to nearly US$1,000 in annual fuel savings. Choosing something else could have had big consequences for your budget.
The 2025 Kia Carnival Hybrid represents the first time minivan shoppers have had a true "something else" to consider when it comes to a traditional hybrid minivan. (There's a plug-in-hybrid Chrysler Pacifica, which costs much more.)
The V6-powered Carnival was already a very impressive van, so Edmunds editors decided to compare Kia's new hybrid minivan to the 2025 Toyota Sienna, which also gets updates, to see which is the best hybrid minivan out there.
Minivans are for hauling people and things, so let's look at what you're getting behind the first row. Both vans offer multiple second-row seating arrangements, including far-sliding captain's chairs that offer pop-up leg rests. Don't be romanced by those, though; there's not really enough space for most adults or even teens to pull off the full La-Z-Boy. Other considerations are more important.
The Toyota's captain's chairs slide even farther fore and aft than the Kia's, but they cannot be removed. The most versatile choice is the Kia's eight-passenger configuration, in which all three pieces of the 40/20/40-split second row slide, creating even more seating versatility, especially with child seats. The Sienna's eight-passenger version has a small removable middle seat placed between shorter-sliding captain's chairs. The Kia's 40/20/40 option aside, the Toyota makes it easier to install LATCH-equipped child seats. The Kia's anchor points are harder to access. In the third row, meanwhile, the Kia may have less space on paper, but its seat is more comfortable than the Toyota's.
The specs say the Carnival Hybrid has a lot more maximum cargo space than the Sienna (145.1 cubic feet versus 101 cubic feet) and that there's more cargo space when all seats are in place: 40.2 cubic feet versus 33.5 cubic feet). The situation flips in terms of small-item storage -- an important minivan consideration. The Toyota has more bins that are more useful. Its cupholder count is superior, especially up front, but the Kia's are larger.
