My sincere condolences about the passing of your father.
I would keep the car for a while since it's one of the few things that you'll remember from your father. When my father passed, I was the owner of his car which was his most prized possession. I kept it to drive my mother back and fourth to the supermarket each Sunday. I hated fixing that car and all the associated cost involved. However, it nearly bankrupted me and was forced to junk it years later. I still miss that car in some ways because of the memories we all had when the family was complete.