The other motifs, colors and symbols in the quilt are a loose combination of things I enjoy and references to the car and my memories of driving it. The color palette of the whole quilt is inspired by the brown car with the white top. I chose this smaller rectangle of white fabric because it had that contrasting white shiny stripe --- just like the striping on the car.
The gray blocks could be industrial buildings and the grid could be parking lot lines. Those green embroidered stalks could be lines of wheat.