On the question of whether the vehicles now issued give service, all the new tricycles are tested for performance and reliability, including testing of prototypes at the Motor Industries Research Association's proving ground. The annual average cost to the Department of maintaining one of the modern machines is only about £30, and that includes servicing, repairs following accidents, and some adaptations made to suit particular patients. I should have thought that that meant that on the whole they were reliable. If the hon. Member has a particular case in mind, perhaps he will let me have details.