Is financial illiteracy with cars common?

[Jake]

Go read /r/personalfinance a read. Some people are so far in the hole they can see China from here.

I was massively cautious about buying the ST with credit. Reading the PF subreddit helped me a lot, and I understand exactly what I entered into with SunTrust. But I think a lot of people have no idea how down payments, interest rates and so forth impact you, and they just sign the papers "because the finance man said I could qualify so he got the payment down to $89 a month because it's all I could afford but 126 months is not that long right?!"