I totally know this “wtf” feeling when you wake up. I dream a lot too and sometimes I google dreamsymbols. Mostly you dream weird stuff because your mind has to process daily situations. Often there are fears deep in us we don’t even noticed yet. It’s subconsciously and driving the car from your boyfriend in your dream (you said he worries a lot about his car) could mean, that you want to be the car that gets more attention than you 🙊