A car is by far one of the worst investments one could make.
Let's put it this way. I dropped $15k on a Neon by putting a high performance suspension in it, a built high performance transmission, punched and bored engine, turbo, all kinds of crazy high end high performance parts in it. When I sold it as parts do you know how much I made back? $3k. So, to answer your question. No, no you can not sell it off as parts and get the value of the car back. It just won't happen. As for your first question. Yes, you can scrap it but don't expect a ton of money for it either. You are only going to get what it's worth in scrap. Which the price of scrap has gone down. Also, when you scrap it you must remove the gas tank, oil, coolant, trans fluid, brake fluid, battery.
You could donate it too. But again, you aren't going to see a dime for it that way either. You'll get a voucher to claim on your taxes that'll be worth up to $500. But again, you don't ACTUALLY get any money for it.
So, you're kind of boned.