Hi there - I know your question was a bit ago, but I wanted to let you know it inspired a blog post to go into more depth on what to do in this situation. It published today and you can find it here:
https://blog.mint.com/consumer-iq/what-to-do-when-your-car-loan-is-higher-than-the-value-of-the-car/
I hope the article is useful to you!
