Toyota Sienna vs Kia Carnival: Which Minivan Should You Buy?

Which Minivan Has More Flexible Seating?

It depends on the row. The Carnival wins up front and in the middle, with 41.1 and 40.5 inches of legroom against the Sienna's 40.3 and 39.9, and its second-row seats slide and lift out entirely. For 2027 Kia also made second-row captain's chairs available on the EX and SX, so you can pick seven or eight seats on more trims; Plaza Kia's 2026 vs 2027 Carnival breakdown lists every change. The base LX seats seven; the LXS seats eight.

The Sienna's advantage is in the back: 38.7 inches of third-row legroom against the Carnival's 35.6, a 3.1-inch gap that teenagers on a long drive to the Poconos will notice. The LE seats eight with a second-row bench; the other grades use captain's chairs and seat seven, and those seats slide far forward and back but stay in the van. Upper Siennas add a built-in vacuum and FridgeBox; the Carnival counters with optional heated and ventilated second-row lounge seats with leg rests.

Which Minivan Has More Cargo Space?

The Carnival, by a wide margin once you fold. Kia lists 40.2 cubic feet behind the third row and 145.1 with the rear seats folded and the second row removed. Toyota lists 33.5, 75.2 and 101.0 cubic feet for the Sienna behind the third, second and first rows. That is 6.7 more cubic feet for a stroller and groceries in the Kia, and 44.1 more for a weekend move to a Queens apartment. The catch: you have to store the Carnival's second-row seats somewhere, which is easier with a garage than with street parking in Brooklyn.

Which Has the Better Powertrain, Hybrid Option and MPG?

On fuel, the Sienna. Every Sienna uses a 2.5-liter hybrid with 245 combined horsepower, and Toyota rates it at 36 mpg combined with front-wheel drive and 35 with AWD. The Carnival offers two paths: a 3.5-liter V6 with 287 hp, 260 lb-ft and an eight-speed automatic, rated 21 mpg combined on the LX and LXS, or a hybrid pairing a 1.6-liter turbo with an electric motor for 242 hp and 271 lb-ft through a six-speed automatic, rated 32 mpg combined on the Hybrid LXS and EX.

Over 12,000 miles a year, a front-drive Sienna uses about 42 fewer gallons than a Carnival Hybrid and about 238 fewer than a V6 Carnival. The V6 earns its keep in another way: 42 more horsepower than the Sienna when you merge onto the Van Wyck with eight people aboard.

Does the Sienna or the Carnival Offer AWD?

Only the Sienna. Toyota offers all-wheel drive on the LE, XLE, XSE and Limited and makes it standard on the Woodland Edition and Platinum, and the AWD system costs just 1 mpg combined. Every Carnival, gas or hybrid, is front-wheel drive. For families who head upstate on snowy weekends or park on a steep driveway in Staten Island, that alone can settle it.

Both vans tow up to 3,500 pounds when properly equipped, enough for a small camping trailer, but the Carnival Hybrid is rated for 2,500. Ground clearance is low on both: 6.8 inches for the Carnival and 6.37 for the Sienna.

Which Has Better Family Tech and Safety?

Neither van earned a 2026 IIHS award. IIHS rates both Good in the small overlap front test and Marginal in the updated moderate overlap test, which now scores protection for a rear-seat passenger. The Sienna scores Good in the updated side test and Good+ for LATCH ease of use, with extra child-seat positions, and its headlights rate Good on every trim. The Carnival scores Acceptable in the side test and for LATCH.

In the cabin, the Carnival starts better equipped: a 12.3-inch touchscreen with navigation and wireless Apple CarPlay and Android Auto on every trim, plus Rear Occupant Alert and Safe Exit Assist, among 18 standard driver-assist features on the LX. The Sienna LE has an 8-inch touchscreen, and the XLE and above move to 12.3 inches; Toyota Safety Sense is standard, and the Sienna gained a rear-seat reminder for 2025. Both put USB ports in all three rows, so every tablet stays charged on the BQE.

Which Has the Better Warranty, Reliability and Resale Value?

The coverage is split. Kia backs the Carnival for 5 years or 60,000 miles, 10 years or 100,000 miles on the powertrain, and 5 years or 60,000 miles of roadside assistance. Toyota covers the Sienna for 3 years or 36,000 miles and 5 years or 60,000 miles on the powertrain, but adds 8 years or 100,000 miles on hybrid components, 10 years or 150,000 miles on the hybrid battery, and ToyotaCare scheduled maintenance for 2 years or 25,000 miles with 2 years of roadside help.

Neither maker publishes a reliability score, so those written terms are the fairest comparison. On a lease, the lender sets the residual value, so ask Plaza for quotes on both vans with the same term and mileage.

How Do Sienna and Carnival Trims and Prices Compare?

The pattern: the cheapest Carnival undercuts the cheapest Sienna by $3,830, the two entry hybrids are $170 apart, and at the top a Carnival Hybrid SX Prestige costs $5,120 less than a Sienna Platinum. Compare the latest Plaza Toyota specials and Toyota finance and lease offers with the Plaza Kia lease deals and Kia incentives, and get an offer on your current car through Plaza Auto Mall. For grade-by-grade detail, read the Sienna hybrid minivan guide and the 2027 Carnival guide for NYC families; if you are deciding whether to wait for the next Sienna, see what we know about a 2027 Sienna.

Sienna and Carnival Minivans in Stock at Plaza Auto Mall

The listings below include every new Sienna and Carnival on Nostrand Avenue, gas and hybrid, sortable by trim, seating and price. Call Plaza Toyota at (855) 529-1806 or Plaza Kia at (877) 545-6543, and we will have both vans waiting with the doors open when you arrive. Delivery is free within 25 miles. Browse every new Sienna and every new Carnival, get directions to Plaza Kia, or see the neighborhoods Plaza Toyota serves. Still comparing? Plaza Auto Mall also puts the Sienna against Honda's minivan and the Carnival against Honda's minivan.

Which Should You Buy, the Sienna or the Carnival?

Toyota Sienna vs Kia Carnival: Frequently Asked Questions

Sources: Toyota's 2026 Sienna release (October 23, 2025) and toyota.com Sienna specifications; Kia's 2027 Carnival pricing release (July 6, 2026), kia.com Carnival and Carnival Hybrid specifications, and kia.com warranty terms; EPA estimates as published by both makers; IIHS ratings. Web specifications and IIHS ratings checked November 12, 2026.

*MSRP excludes Kia's $1,545 destination charge, Toyota's delivery, processing and handling fee, and taxes, title and registration. Sienna figures are 2026 models; Carnival figures are 2027 models. Manufacturer data as of November 12, 2026. EPA estimates are for comparison; actual mileage will vary. Towing requires proper equipment. Confirm pricing and availability with the dealer.