Custom plugin

Hi Guys, I want to create a website to view car dealership for my X client, where we fetch the data from a public website that he(my X client) have a store with cars on it. the site is : [login to view URL] - Ex. of the client store is : the company name is : Barkarby Bilcenter AB The store of Barkarby Bilcenter AB with cars is : [login to view URL] Ex of Car page information is:[login to view URL] - Another Ex. of the client store is : the company name is : 08Bil Hammarby Sjöstad AB The store of 08Bil Hammarby Sjöstad AB with cars is :[login to view URL] ex of Car page information is: [login to view URL] Requirement: - Now, I want to fetch the cars list and car description and information(fields) to another website as a list also. The another website is a wordpress site, where I will use Divi theme with it. - We need to design a custom post type that will have the fetching data that are imported from the car dealership store. to be something like: list of cars and also another design post to view the page for the car details like: ex of Car page information is: [login to view URL] - So the plugin will make all this Job. and they will check every time if the new car added to the the car dealership store on [login to view URL] to add it to the the car dealership store on the new website. - The pages are responsive. - If I forget to add something , so please tell me that. Regards ALAA