Hybrid Car Credit

I am looking to buy a new car. I want a Toyota Prius or RAV4?
I heard that the Prius is really hard to buy with a credit not so good (620). A lady at the bank told us (me and husband) who did not qualify for a hybrid something that the battery was 3 to 4 thousand? Is this true? Prius are also small cars my husband is 6'0 I just go with Rav4?
RAV4 has no advantage over the Prius, except the fact that it is an SUV – which means. Prius is roomier, has better fuel economy and handles much better. The battery life should not be a major problem – that lasts a while very long. Furthermore, the battery technologies are improving rapidly and prices will go down in the coming years. So when you need a substitute, that can cost less than 3k. And on the "hard to buy", the lady at the bank has no idea what he's talking about. Good luck.
How to compare a plug-in hybrid car + photovoltaic