Good afternoon all. I am a 25 year old working in my career field making about 43K before taxes. I have no credit card debt and $9500 in savings (some in a high interest savings account and some easily accessible in my regular bank savings), but I have 17K left on a car loan and ~16K in student loans. The car was wrecked and repaired to its original state, so I plan to keep it forever now because I feel it has lost its resale value. That payment is $292 a month with 5.25% interest. One of the student loans was taken out by my mom for me and is in my mom's name. I still owe about $3500 and my sister owes $5500 on that one. We were going to take turns paying for it with me going first, but she can not take over the payments right now ($107 a month). Not sure the interest rate on that. I also have a loan in my own name which has about $12,500 still left on it ($168 a month). I believe that is 4.25% interest.
As soon as I reach 10K in savings (a number I just kind of made up for my own goal, $8500 is 6 months of all my bills), I want to start paying down my other debts, maybe $300-500 a month while still putting $100-300 in savings. I am just not sure which to start paying off first. On one hand, the car is something that can always "pay for itself", even if wrecked. On the other hand, student loans can be deferred in certain cases and are expunged if I died. Both are going to take a long time to pay off with only $300-500 a month extra because the remaining balance is about the same, but its still better than just making minimum payments, I know.
Any ideas?
Thanks in advance.
Update: Thanks for all the advice! I have a lot to think about now. I have wanted for awhile to pay off the $3500 loan, but I just worry that my sister can't take on the debt. She makes great money, but is letting her husband go to school full time and not work and has a house she needs to sell, but that is a whole different topic. I guess I need to just get her to take it on because I'm wasting my own money on interest. I will let you all know what I do!
I at least bought a Honda Dr. Dean, they lose value a lot slower than other models. :) That's always one thing I've been vain about and impractical. Oops! Would anyone recommend refinancing or just go ahead and put extra money into it without bothering to refinance?
edit: I have a planner and every pay day I have a list of what bills are paid with that check and I keep track of my spending in Microsoft Money. I definitely have areas I could tighten my belt.

