A vehicle model defines what a vehicle costs and what a driver on that vehicle owes each day. Every driver is assigned to a model, so this screen sets your daily target.
What a model holds
Changing the daily amount on a model changes the target for every driver assigned to it. Check the active driver count before you edit.
Adding a model
Use Add vehicle model and complete every field. A model with no daily amount produces drivers with no target, which shows up as a dashboard that does not add up.
Archiving
Archive retires a model you no longer finance. Archive rather than leaving unused models active, so the filters on the driver roster stay useful. Drivers already assigned keep their financing terms.