Dreams involving cars often symbolize your journey in life and the direction you're heading. Seeing your family car driving into white picket fences could suggest feelings of boundaries being crossed or issues within your family or neighborhood dynamics. The white picket fence typically represents safety, boundaries, and idealism, so crashing into them might indicate conflicts or challenges in maintaining those ideals.

The fact that the car then made a left turn towards a home with the name of a man you frequently think about could imply a desire to explore or confront feelings related to that person. It might suggest that this individual plays a significant role in your life or thoughts, and the dream could be prompting you to reflect on your feelings towards them or the situation.

Consider how you felt during the dream and upon waking, as these emotions can provide additional insight. It might be helpful to ask yourself what this man represents to you and how your relationships with family and neighbors are currently. This dream could be encouraging you to address any underlying issues or feelings regarding these connections.