I have a 2004 Sienna bought in 2003 with 188000 miles on it. Starting to have some repair issues - strutts, lower control arms. What is the highest mileage recorded on a Sienna of this age that is still running? If they have a record of lasting up to 250000 miles or beyond, it may be worth it to invest the $$. The monthly payment on a new Sienna or even a pre-cert used one is high. Anyone know of 2004's with very high mileage?