Research shows that wearing your mask, and opening the front passenger window, and the window behind the driver seat helps to reduce the spread of the novel coronavirus in your vehicle. See this NY Times article.
Big picture, I would love to see every commuter rideshare and bring cars off the road. I have a new Toyota Sequoia with plenty of room and I drive from Franklin to downtown Nashville three days a week. Typically Tuesday, Wednesday, Thursday; but can be flexible. My preference is to leave Franklin between 6 and 7 AM, and return between 3 and 4 PM. But again, I am flexible. I’d love to ride share to minimize cost and waste. Thanks! -Jeff