 We bought the sienna only because of the 8 seater and the local dealer offers a life time guarantee on the transmission. Everything seems to need to be replaced just as the warrenty runs out - brakes, tires, etc.. This spring (only 1 1/2 year old car) the left passenger door broke and recently at less than 2 years old the right side broke. The estimate is over $4000 to fix them. Thereason I was told is that we drive too much. Dealer informed us that we should only be driving 13k miles per year.  