The following motor vehicles may not be used on a public road-
a bus of which the distance between the centre-lines of the tyres of the two front wheels exceeds 1,9 metres, if the overall width of such bus exceeds 2,6 metres;
a goods vehicle the gross vehicle mass of which is 12 000 kilograms or more, if the overall width thereof exceeds 2,6 metres, or
any other vehicle, if the overall width thereof exceeds 2,5 metres.