I feel like my best friend is using me

Okay so i drive. My best friend doesn’t. My parents give me the car and gas it for the purpose of school and school only. Sometimes they’d let me go out and have fun but I don’t like because I’m not paying for gas. My best friend has been asking me to go out w her, and it ain’t even worth it bwcause I’m broke and she likes going out to the bars and stuff. Also, shes been asking me to come over and take her shopping because she needs things. Ever since the day I met her she’s never given me money for taking her places. She just expects and every-time I bring it up she’s like “oh why don’t you just ask” and still, she doesn’t. I don’t mean to be the type to expect but she’s using my gas and breaking promises she can’t keep like saying she’ll give me money, and its super irritating. I don’t want to confront her and tell her to learn how to drive because it will hurt her feelings.