Since there is already an odometer in each vehicle’s statistics, why not add it to the main HUD. It won’t take up too much space, and other racing games have done it before.
One of the best racing games ever
It would be a great idea to have a odometer alongside speed, gear, and RPM in FH5. This could be seamlessly incorporated within the tachometer, providing the opportunity to monitor driven kilometers/miles in real-time. It would be wonderful if the covered distance of the respective vehicle is stored, allowing one to track the total distance traveled with that specific vehicle at any given time. This feature could be implemented not only in the HUD but also within the vehicles themselves, rather than always observing a randomly covered route.
(The same also applies to the clock present in many vehicles, which consistently displays 12 o’clock!)
Even the aging Gran Turismo 6 had an odometer.
Even gran turismo 3 had one