Id be happy to help assist you in understanding your dream. The dream is showing how you are processing your feelings and thoughts relating to your job and new supervisor. With him being in the car is showing where you are going in the world. A car is considered our vessel in a symbolic way. He is along for the ride as he will be in your life because he is your job supervisor. So him being in the car is showing how he is entering into these new areas of our life. Perhaps him laying on you is showing how his presence may make you feel in public. Perhaps awkwardness? However you touching him is showing you will get over these certain thoughts or feelings you may have about him. If you have any more questions please feel free to ask.