OK I want one.

<div class='quotetop'>QUOTE(kuki @ Jul 19 2006, 06:29 PM) [snapback]289094[/snapback]</div>

I suggest you visit a Toyota dealer. Bring along your loan documentation. Ask what your monthly payments would be if you traded the truck for a Prius. That will give you a ballpark figure. You could probably get more for the truck by selling it privately, and you might be able to get a better loan deal from a bank or credit union than from the dealer, but at least you'll have a general idea.

That said, I'll repeat what I've said elsewhere: I think borrowing is a bad idea. My first suggestion would be to sell the truck and buy a used Civic or Corolla. Good gas mileage, great reliability, and much cheaper over the life of the car than any new car. Plus you'd have money left over towards that house.