The current Sienna is severely compromised from a utility standpoint - the design team just didn't try very hard. And, again on the current model, you have to

The current Sienna is severely compromised from a utility standpoint - the design team just didn't try very hard. And, again on the current model, you have to get the AWD or it is drastically underpowered for driving when loaded up (the AWD option adds a ~30HP electric motor for the rear wheels). And to make matters worse, it is built in the same factory that makes the Highlander, Grand Highlander, and Lexus TX. They adjust the output mix to ensure that dealers will never have a large inventory - so you are guaranteed to be forced to pay full price and will never get a good deal on it. This wouldn't be such a bad thing, except that the sticker price is expensive.