
The rear trunk of the Sienna has a capacity of approximately 949L. Here are the specific details: 1. Body dimensions: The Sienna (07-18 model) is an MPV under the Toyota brand. The length, width, and height of this vehicle are 5085mm, 1984mm, and 1796mm respectively, with a wheelbase of 3030mm. 2. Configuration: It comes standard with the "SafetySense" active safety system, which includes adaptive cruise control, lane departure warning, automatic high beams, collision prevention warning, and pedestrian detection, among other safety features. The multimedia system has also been upgraded to the latest Entune 3.0 version.

I remember the Sienna's trunk is incredibly spacious, which I really appreciated during my last move. In the normal three-row configuration, it can easily fit two 28-inch suitcases with room to spare, offering about 525L of space. The most practical feature is that the third-row seats can be completely folded into the floor, boosting the cargo volume to a whopping 2112L. Last time, I helped my brother transport his graduation belongings—four large duffel bags plus a bicycle all fit in effortlessly. The flat floor design is absolutely brilliant, making it easy to load heavy items without lifting them too high. For regular IKEA runs, it outperforms my friend’s SUV in terms of cargo capacity by a mile.

As a seven-year Sienna owner, the trunk is what I'm most satisfied with. With the third row up, it easily fits a stroller plus two large bags of groceries. When folded, the depth reaches nearly 1.2 meters - I've even helped a neighbor transport a foldable sofa. During one camping trip, we partially folded the third row to use as temporary dining chairs while still fitting tents and sleeping bags in the trunk. Official volume figures are: 525L with all rows up, expanding to 2112L with seats folded. The adjustable luggage restraint is particularly thoughtful, preventing items from flying forward during sudden braking.

Last week, I visited a 4S store to test the Sienna's trunk space. During the demo, with the third-row seats adjusted to the foremost position, the rear cargo area could fit seven carry-on suitcases. When fully folded down, it can serve as a double bed, with a depth of approximately 1.8 meters. I specifically noted that there was no difference in trunk space between the hybrid and fuel versions, as the battery doesn’t encroach on the cargo area. The storage compartment under the floor can hold two pairs of sneakers and an umbrella. Compared to the Odyssey, the Sienna's trunk is about 10 cm wider, making it easier to place a stroller sideways.

My engineer friend said the Sienna's trunk design is quite ingenious. The 525L base capacity is achieved through rear suspension optimization, and replacing the spare tire with a tire repair kit saves space. They tested and found that with the third row folded down, it can hold 24 standard carry-on suitcases. The cargo floor height is only 62cm, making it easy for elderly people to access items without straining their backs. For the hybrid version, since the is located under the rear seats, the cargo capacity is exactly the same as the gasoline model. That segmented cargo cover is particularly practical, as the front section can be folded separately to accommodate larger items.

My family runs a maternal and child products store, and we've been using the Sienna for deliveries for three years. In its normal state, the trunk can hold six boxes of diapers, about 1 cubic meter. When the seats are fully folded down, it can accommodate ten boxes of formula milk. The most impressive feature is the third-row seats that can slide forward and backward by 13cm—when delivering goods, pushing the seats forward allows us to stack items up to the roof without touching the seatbacks. Once, we loaded ten boxes of wet wipes from the wholesale market, each 1.1 meters tall, and they all fit. The low floor height makes it effortless to move 40-pound goods. The official volume ranges from 525 to 2112 liters, but in practical use, it feels even more spacious.


