For the purposes of this Directive:

1. "vehicle" means: (a) any motor vehicle propelled exclusively by mechanical power on land but not running on rails with: (i) a maximum design speed of more than 25 km/h; or (ii) a maximum net weight of more than 25 kg and a maximum design speed of more than 14 km/h; (b) any trailer to be used with a vehicle referred to in point (a), whether coupled or uncoupled. Without prejudice to points (a) and (b), wheelchair vehicles exclusively intended for use by persons with physical disabilities are not considered to be vehicles referred to in this Directive;