The app focuses on self-driving tours, car sales, repairs and car grooming between Hong Kong and the Greater Bay Area.In the market, there are several apps about car sales, but none of them can gather all the apps about cars and related topics in Hong Kong and the Greater Bay Area. The Hong Kong government announced in its policy address on November 25, 2020 that there are 9 specific cooperation projects for the development of the Guangdong-Hong Kong-Macao Greater Bay Area. Among them, the “Hong Kong Vehicles Northbound” scheme that allows Hong Kong vehicles to travel to Guangdong Province via the bridge without quotas. There will be no quota in the plan. Citizens can drive between Hong Kong and Guangdong Province by themselves through the bridge. The bureau is finalizing the details with Guangdong Province. It has initially decided that eligible persons will not stay for more than 30 consecutive days per entry, and a total of 180 days per year, which is believed to be sufficient. Citizens need for short-term business and family visits.Our idea is to use this app to provide drivers in the Greater Bay Area with information on cars and peripheral products and services, and introduce the fun of self-driving travel in China and Hong Kong, so that guests can better understand the Greater Bay Area.Self-driving tour, car sales, car maintenance, car beauty, port car northbound, car insurance, racing activities