Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
Do you know what the Will actually provides for?
Has he obtained Probate of the Will?
Why have you lodged a Caveat?
What other assets are there - given that you have the house?
The problem is that with the Caveat in place the Executor of the Will cannot obtain Probate and cannot dispose of the cars.
Since there are no other assets there appears to be nothing to gain from the Caveat and it would be worth offering to lift it in return for the removal of the cars.
If the Caveat is lifted and he still fails to remove them then you can write and give him notice of your intention to arrange for their collection and disposal and that you will account to him for any profit after the costs of disposal have been taken into account
I hope that this is of assistance - please ask if you need further details