In Hurdlr, you are able to enter any cars that you drive, in order to associate the mileage with that specific car.
To add a new car:
Tap 3 dots in top left corner of the mobile app or tap the gear icon in the top right corner of the web app
Tap the plus sign in the top right corner
Enter the details about your car including the nickname, make, model, and year. You can also enter the January 1 odometer reading if you’d like
Toggle on the switch that say Primary Car, so your trips are associated with that car automatically
Since you’re able to choose which car you want to make the primary one at any given time, you can update this at any time if you switch between driving multiple cars.