I have 2 black vehicles and swirl marks are a constant battle. A "car wash" whether its touchless or not will leave numerous amounts of swirl marks in your clearcoat. I would recommend doing it yourself. Wash with a genuine sheepskin mit and polish/wax with a good microfiber towel.
Always wash a dark car with how the wind flows over your vehicle. Don't wash in circles or up and down. Wash how the wind would flow over your vehicle.....basically side to side.
Always wash a dark car with how the wind flows over your vehicle. Don't wash in circles or up and down. Wash how the wind would flow over your vehicle.....basically side to side.