Death in the morning

I could not see what it was until it was too late. I saw what seems a small brown bag being bounced around under the car. I realize now that it was trying to escape. The driver probably never saw it. A grey BMW with Maryland plates, convertible with the top down and the man enjoying the morning sun.
Below his car, I saw the brown bag being tossed up and down until it got trapped it under the rear tire. The bag turned red and I saw the feathers being smashed. Instinctively, even though I was also driving, I closed my eyes. Too late. The image of the red splash on the pavement stayed with me all day.