Toyota Sienna [mini van] 6 cylinder vs. 4 cylinder engine?

Good point, Triedaq. I live in Mexico, and most, not all, of my driving is done with a ridiculously low 60 hph speed limit, less then 40 mph. If I get another one, it will be 4 cylinder to keep original cost down. Unless as Triedaq says I can get a better price on a 6 in stock.