“(6) Where a vehicle (being a mechanically propelled vehicle or a vehicle drawn by a mechanically propelled vehicle)—

(a) is hired to a person under a hire-purchase agreement (within the meaning of the Hire-Purchase Acts, 1946 to 1980) or is otherwise rented or leased to the person under an agreement, and

(b) the owner of the vehicle neither provides a driver nor causes a driver to be provided,

then, the person to whom the vehicle is so hired, rented or leased shall, in relation to subsections (1) to (5) of this section, be deemed to be the owner of the vehicle.”.