Diagnosis
An existing car record will be delimited with a new C02 Value as of1

Procedure
Check that the car record chosen in the selection is the exact same caras the one to be recorded for the employee. If not, choose another carrecord or create the details for the new car. Ensure that Validfrom date is correct.
If you are sure that this is the exact same car and that the C02 valuewas changed from a new time point, then proceed to delimit the record.