3.—(1) In this Order—
“heavy locomotive” means a mechanically propelled vehicle which is not constructed itself to carry a load other than any of the expected articles and the weight of which unladen exceeds 11690 kilograms;
“heavy motor car” means a mechanically propelled vehicle, not being a motor car, which is constructed itself to carry a load or passengers and the weight of which unladen exceeds 2540 kilograms;
“invalid carriage” means a mechanically propelled vehicle the weight of which unladen does not exceed 254 kilograms and which is specially designed and constructed, and not merely adapted, for the use of a person suffering from some physical defect or disability and is used solely by such a person;
“light locomotive” means a mechanically propelled vehicle which is not constructed itself to carry a load other than any of the expected articles and the weight of which unladen does not exceed 11690 kilograms but does exceed 7370 kilograms;
“motor car” means a mechanically propelled vehicle, not being a motor cycle or an invalid carriage, which is constructed itself to carry a load or passengers and the weight of which unladen—
if it is constructed solely for the carriage of passengers and their effects, is adapted to carry not more than seven passengers exclusive of the driver and is fitted with tyres of such type as may be specified in regulations made by the Department, does not exceed 3050 kilograms;
if it is constructed or adapted for use for the conveyance of goods or burden of any description, does not exceed 3050 kilograms or 3500 kilograms if the vehicle carries a container or containers for holding for the purposes of its propulsion any fuel which is wholly gaseous at 17.5 degrees Celsius under a pressure of 1.013 bar or plant and materials for producing such fuel;
does not exceed 2540 kilograms in a case not falling within sub-paragraph (a) or (b);
“motor cycle” means a mechanically propelled vehicle, not being an invalid carriage, with less than 4 wheels and the weight of which unladen does not exceed 410 kilograms;
“motor tractor” means a mechanically propelled vehicle which is not constructed itself to carry a load, other than the excepted articles, and the weight of which unladen does not exceed 7370 kilograms;
“motor vehicle” means, subject to Article 6, a mechanically propelled vehicle (not being a tramcar or other vehicle running on permanent rails, or a trolley vehicle) which is intended or adapted for use on roads;
“trailer” means a vehicle drawn by a motor vehicle;
“vehicle” includes a cycle and a trailer.
(2) In paragraph (1) “excepted articles” means any of the following: water, fuel, accumulators and other equipment used for the purpose of the supply of power for the propulsion of the vehicle, loose tools and loose equipment.