A 4S store, also known as a 'four S store,' refers to a retailer that is authorized to sell new cars, provide after-sales service, and has a full range of spare parts. The showrooms are designed to showcase the cars in an attractive and informative manner, enhancing the customer experience. A layout drawing of a car 4S store showroom typically includes plans for the placement of vehicles, display areas, customer service desks, and waiting areas. It also considers factors like lighting, flooring, and overall ambiance to create a welcoming environment.