the forty daf sb220/plaxton verdes, which went into service with dublin bus in 1993, had additional front grille apertures and dual door. they were known as the p class and were used to introduce a new high frequency brand known as 'city swift' on route 39 (city centre - blanchardstown). they were plagued with structural problems and returned to scarborough more than once for remedial treatment. in 2003 they passed to sister company bus éireann and were converted to single door for school bus work. all are now withdrawn as of may 2015.