The new Car Key Tests app was added to the App Store today, according to 9to5Mac‘s sources. The app is being distributed under Apple’s developer account but is currently unlisted. This means you can only access it via a direct link, not via App Store search or Apple’s account page. The app is meant for car manufacturers to test integration with Apple’s Car Key feature. Apple says that the app allows those companies to “test and validate” requirements for the certification process of adopting Car Key through its Made-For-iPhone program.