Suppose someone's credit was ruined from a bankruptcy...if they could get auto financing at all, then the interest rate would be terrible I'm sure. But what if they had a large sum of money to put down on the vehicle? If you buy a new $20,000 automobile, and put $10,000 down, would you be justified to demand the same low interest rates offered to people who have excellent credit but put virtually no money down?

You CAN get a decent car loan, even with bad credit. I've done it, but you'll have to look around. That's one of the BIG mistakes people make...just taking the first offer that's given to them when they go to the dealer. Be smarter than that.

WARNING: DON'T GO TO BUY A CAR WITHOUT HAVING THE LOAN FIRST. The auto dealers will eat you alive and give you a crappy rate. Shop around with lenders who specialize in bad credit car loans. It's a better option, you don't have to take what they're offering if you don't want it, and it's better than dealing with the car dealer's people.

There are usually some nationally based car loan companies who specialize in bad credit car loans who advertise on the page linked below...

http://www.axalda.info/bad-credit-car-loans.html

the bankruptcy would have cleared you from debt but still a risk....with half down your interest rate would drop there risk has just been lower...if they were to repo it they would get there money back plus all repo and resale expenses
what ever was left you would get a check for it ...so to answer question yes you would get a better rate...some where between the max interest rate allowed in your state and the lowest advertised rate for a new car purchase with perfect credit