It'd be fun to have a mileage on your cars in BeamNG just to see how much you've driven them. The mileage and trip computer should have the ability to be reset to "000000" with an app, and you should be able to set it to whatever you want with that app. If it;s not obvious, the odometer should be active when you're driving. Here's an example of an analog odo and trip computer in my Land Cruiser, and the under that is a digital one from a 2006 Range Rover (dad's car).
