Dream about being given car keys is sadly a lack of maturity or capabilities. You are feeling overburdened from your daily problems and need an outlet to release all that tension. You are misrepresenting yourself in some way or that you are misleading others. It means an authoritative figure or a father figure. You are releasing all those pent up emotions and negative feelings.
Being given car keys dream points at some unsavory or unpleasant task that you need to perform. There is a lack of balance in your life. You are losing control of who you are. Your dream is an omen for your fast paced life as you try to balance several things at the same time. There are several approaches to tackle the same problem.
If you dreamt about being given car keys:
There may be no easy way to get around the task you have set yourself today concerning a current relationship. Your problem is that you are trying to think about every eventuality instead of just taking the plunge. It certainly won't be as bad as you imagine.