The replacement car is completely free but will only be provided if you keep paying your normal weekly instalments under your Rent-To-Buy contract.  

The type of replacement car you are provided with does not change your weekly instalments due under your Rent-to-Buy contract - you are still required to pay your full weekly amount as you continue to pay towards owning your car under your Rent-To-Buy agreement. 

If you miss a weekly payment or any other payment due under your Rent-To-Buy agreement whilst in the replacement car, you will be required to return the replacement car, and your Rent to Buy agreement may be terminated if you do not address the arrears.