Could I trade in my 2003 Honda odyssey as a down payment for another preowned vehicle?

They have good pre owned inventory and also have power train warranty for vehicles night from them... I believe they will buy ur old car too

I'm sure you could it just depends on what they offer and if you accept. It never hurts to ask. Good luck

Yes you may, but highly you probably won't get as much as you like, better chance to advertise on street with higher chance of getting what you ask for

Yea