I'm looking for a teenage/young adult book series about a teenage girl who finds out that one of her parents is a dragon, and I think the other one might be a dragon hunter or from some other sort of rival group. I'm pretty sure the main character has a very typical white girl name (Jennifer or Jessica?). I read the first book in the early 2000s, maybe around 2008, but there were already a few books at this point so they were probably released in the late 90s or early 2000s in English. They definitely weren't mainstream but I think they were relatively popular, I had a few friends that read them too. They were definitely aimed at a teenage female audience but I read them as a 12 year old boy or so and enjoyed them quite a bit.
The only specific scene I remember is when the main character had her first "big" confrontation (I think at the end of the first book), and her best friend, who's just a normal person, ends up driving in and saving her (I think she ran the evil guy over), and one of them makes a comment about how her friend only has a learner's permit and shouldn't be driving. I think her best friend was the only normal person who knew she was a half-dragon? I also seem to remember that her one non-dragon parent lived on some weird farm, and I think that's where she did a lot of her training and learned more about the dragons.
I've looked at basically every list of YA dragon books I could find, I've looked up things that I remember as possible titles (Jennifer Scales is really sticking in my head but that doesn't exist), and I've looked at other Story-Identification questions here with no luck so far.