[F17. The following conditions must be satisfied in relation to the motor vehicle, namely—E+W+S
(a)it complies with the relevant braking requirements;
(b)it has at least three axles;
(c)every driving axle not being a steering axle is fitted with twin tyres; and
(d)either every driving axle is fitted with road friendly suspension or no axle has an axle weight exceeding 8,500kg.]