How to enter for car donation

I donated my old car to a charity car organization for base value of $500. But they auctioned it for $1250.  

 

Q1: where do I report this deduction? Is it part of charity donation?

 

Q2: can I deduct the $1250 or just $500 standard value?  The charity said that they need my social security number to issue me a tax form but I did not provide them for my own security safty.  They do have sent me email about the auction price.  Can I deduct $1250?

 

Thank you for your help!