i'm not sure why this is such a struggle for me to find this information! We're van shopping, and i'm trying to find an at a glance reference for how many latch points are in each model, by year. I've heard that the newer odysseys have 5! Which is perfect. Unfortunately I don't see us getting a super new one ;) We definitely want either an odyssey or sienna. I'll have 4 kids in the car. Pretty sure in all models new enough for LATCH at all, its pretty much a given in the center row where I'll have the RF kids. the older two will be in the back and ideally there will be LATCH available to secure dd's booster, and a tether point available to tether ds's ff seat. Anyone know where I can find this, without painstakingly googling each and every individual model/year? lol
2010 and earlier Siennas (not sure how much earlier, my '09 is this configuration which is a 7 seater) have 2 full sets in the middle row on the captains chairs and 2 full sets in the rear (passenger side I think and middle). There is no upper tether on the other side (driver I think). The 2011 and newer seinnas have 2 full sets on the captain's chairs (the anchors are buried) and I believe 1 full set in the rear, though on that I'm not sure. I've only had newer siennas as rentals.
You might get a better answer over at car-seat.org