!3 We should be able to delete a Car owned by that Customer
...todo...

!3 We should not be able to delete a Car if the Customer owns no Car
...todo...

!3 We should not be able to delete a Car not owned by this Customer
...todo...

!3 We should be given a list of Customer's Cars to choose from
...todo...

!3 We should default to the Customer's Car if they own only one.
...todo...
