Dreams about being in a car often symbolize your life's journey and direction. In your dream, the situation with your brother trying to get into the car while the driver did not wait could represent feelings of frustration or helplessness in a situation where you feel someone close to you is being overlooked or left behind.

The fact that you woke up in anger suggests that there may be underlying emotions related to control or concern for your brother's well-being. This dream might reflect a fear of not being able to protect loved ones or feelings of being powerless in a situation where you want to help.

Consider reflecting on your current relationships and any situations in your life that might make you feel frustrated or concerned for others. It may be helpful to communicate openly with your brother or those involved to address any feelings of disconnect.