Abstract: A container system for washing cars includes a base container, which may include wheels, rollers, etc., for mobility, which is structured to contain a cleaning solution during a car washing operation. A basket having a grate is positionable into the base container, and is structured to filter out particulate matter from the cleaning solution during a washing operation, and to provide a means for air circulation to one or more cleaning accessories stored thereon upon completion. A cover container is provided which is cooperatively structured with the base container to operatively engage one another in a closed configuration, for transport and storage, along with a plurality of cleaning accessories stored therein. The cover container may be utilized as a seat or step stool by the user during a car washing operation. At least one handle is provided and is structured to at least facilitate positioning of the container system.