—(1) No vehicle shall, subject to these Rules, show —
a red light to the front; or
any light to the rear, other than a red light or a white light for the purpose of reversing.
(2) Paragraph (1) shall not prevent a vehicle from carrying a lamp showing a light to the rear for the purposes of —
internal illumination of the vehicle;
illuminating an identification mark, a taxi meter, or any device for giving signals to overtaking traffic; or
in the case of a public service vehicle, illuminating boards, plates or devices indicating the route or destination of the vehicle.