If it is okay to ask the following questions, here are some for you: how many times have you met this guy in person? Also, what was your interaction like such as what did you two do, where were you and so forth? Why is dating a secret from your parents?

The act of hopping in his car without, maybe, establishing trust might be a reason to delay agreeing to such an action as others already noted. Why not go somewhere in public such as the movies, dinner, and another location/activity?

Regardless of what anyone else's opinion is (including mine,) it is your decision. please be careful.