Top Factors to Weigh When Exploring the Car Wash Business Convenience store operators should consider space requirements as well as equipment and payment options. Gas N Wash Partners With Chicago White SoxFans can score a free wash at participating locations when the team steals a base during a home game. Prefabricated ModBrite Car Wash System Its small footprint allows c-store operators to keep their old car wash structures or install the pre-fab structure within just weeks.