This depends upon the bank and your situtation. Banks usually consider a score of 640 or higher a good score for car loans, however, this depends upon the bank.
This site has many reports that will most likely answer most of your questions –

i’m not too sure, but i think that if your bank can see that you are making positive efforts to rebuild your credit score, then you should be alright, don’t forget shop around for the best interest rate/deal