Niko on 09 Mar, 2019 09:57 AM
The Timelime for iPhone app has basic time tracking features and is mainly meant a companion app for the Mac app.
Still the iPhone app allows you to track time on different tasks (cars in your case) and organize these tasks in a hierarchy and get total times. You could set up a hierarchy like this: department -> employee -> car.
While you can manually enter work times in Timelime, the recommended way of tracking time is starting and stopping a timer in the app when doing work.
When using Timelime on several devices, you can synchronize the tasks and times using either iCloud, Dropbox, or a WebDAV server.
I hope this helps. Let me know if you have any other questions,