(1) Section 6 of the Principal Act shall not apply in relation to a provision in an agreement made after the commencement of this Act whereby an owner of a motor vehicle which has been let under a hire-purchase agreement or a person acting on his behalf is -
(a) authorised to enter premises (other than a house used as a dwelling or any building within the curtilage thereof) for the purpose of taking possession of the motor vehicle, or
(b) relieved from liability for any such entry.
(2) Where -
(a) the owner of a motor vehicle let under a hire-purchase agreement has commenced an action after the commencement of this Act to recover possession of the vehicle from the hirer, and
(b) either -
(i) one-third of the hire-purchase price has, before the commencement of the action, been paid or tendered by or on behalf of the hirer or any guarantor, or
(ii) the hire-purchase agreement is a further hire-purchase agreement within the meaning of section 16 of the Principal Act, and
(c) the vehi