Adding automatic car wash machines to supermarkets (large supermarkets, shopping malls, etc.) is an innovative "parking scene service extension" that can effectively increase customer stay time, increase consumer stickiness, and create additional revenue for supermarkets. The following is a detailed analysis of the advantages and implementation plan:

1. The core advantage of automatic car wash machines in supermarkets
Improve customer experience and satisfaction
High scene fit: customers can wash their cars directly after shopping, saving time to go to the car wash shop, and realizing a one-stop service of "shopping + car washing".
Solve pain points: Especially suitable for rainy days or severely polluted areas, customers' cars are easy to get dirty when shopping, and there is a strong demand for car washing.
Increase the flow of customers and stay time in supermarkets
Drainage effect: Car wash services can attract car-owning family customers, especially in high-spending groups (such as maternal and child care, high-end supermarkets).
Extend stay: Customers waiting for car wash may continue to consume in supermarkets (such as cafes and restaurants), increasing customer unit price.
Create multiple sources of income
Direct income: Car wash charges (single or membership system).
Indirect benefits: Link with merchants (such as shopping over XXX yuan to get car wash coupons), drive sales of other formats.
Advertising value: Advertisements can be placed on the body or waiting area of the car wash machine (such as car brands, supermarket promotions).
Differentiated competition and brand upgrade
The first to provide car wash services among similar supermarkets, shaping the "convenient and user-friendly" brand image.
Suitable for high-end supermarkets to match the needs of car owners (such as Tesla owners prefer contactless car wash).
Low marginal cost and environmental benefits
The water consumption of automatic car wash machines is only 1/5 of that of traditional car washes (if equipped with a water circulation system).
No need to increase a large amount of manpower (can be integrated into the management of supermarket property teams).
2. Automatic car wash machine types and selection suggestions:
Supermarkets need to choose the type of equipment based on parking conditions, target customer groups, and budget:

Tunnel car wash machine
Features: The vehicle is pulled through the washing area by a conveyor belt, fully automated, and highly efficient (30-50 vehicles can be washed per hour).
Applicable scenarios: Gas stations with large sites (requires a length of 30-50 meters) and high traffic volume.

Touchless Car Wash Machine
Features: high-pressure water + foam spray, no need for brushing, reduce paint damage, suitable for high-end vehicles.
Applicable scenarios: small and medium-sized gas stations (covering an area of about 10×5 meters), customer groups with high demand for car paint protection.

Reciprocating (gantry) car washing machine
Features: The equipment is mobile for cleaning, the vehicle is stationary, and it occupies a smaller area (about 6×4 meters).
Applicable scenarios: gas stations with limited space and low cost.