People are going to say "not like you paid for it" and crap like that about you crashing your car. People are going to give you shit for not buying your own car, even moreso because they see you had an expensive car. Just let them keep hating and you do what you need to do. True, maybe you'd appreciate it more if you payed for it yourself, but even if you didn't I'm sure you appreciated it regardless. Understand that people have things given to them, and others give it to themselves. Those who do may sometimes give you a hard time. Personally I bought my own car but I do not think you're a bad person because you didn't buy yours. Hell if someone bought me my car i'd be thrilled!
I couldn't care less if someone had a Geo Metro or a Ferrari 430.