▁to ▁Ke olis ▁Down er ▁with ▁the ▁new ▁franch ise ▁comm encing ▁on ▁ 3 0 ▁November ▁ 2 0 0 9 . ▁The ▁Y ar ra ▁Tr ams ▁brand ▁was ▁retained . ▁Ke olis ▁Down er ▁introduced ▁a ▁new ▁Y ar ra ▁Tr ams ▁logo ▁along ▁with ▁a ▁new ▁li very ▁featuring ▁yellow ▁doors . ▁ ▁In ▁September ▁ 2 0 1 7 , ▁it ▁was ▁announced ▁that ▁the ▁franch ise ▁is ▁to ▁be ▁extended ▁until ▁November ▁ 2 0 2 4 , ▁but ▁with ▁t ough er ▁conditions . ▁ ▁Oper ations ▁ ▁Fle et ▁ ▁As ▁of ▁January ▁ 2 0 1 9 , ▁the ▁fleet ▁consists ▁of ▁over ▁ 4 5 0 ▁W , ▁Z 3 , ▁A 1 , ▁B 2 , ▁C 1 , ▁C 2 , ▁D ▁and ▁E ▁class ▁tr ams , ▁operated ▁from ▁eight ▁dep ots . ▁ ▁In ▁October ▁ 2 0 0 1 , ▁Y ar ra ▁Tr ams ▁took ▁delivery ▁of ▁the ▁first ▁of ▁ 3 6 ▁C ▁class ▁Cit ad is ▁tr ams ▁which ▁have ▁primarily ▁operated ▁on ▁route ▁ 1 0 9 ▁to ▁complement ▁the ▁extension ▁to ▁Box ▁Hill . ▁As ▁part ▁of ▁the ▁ac quisition ▁of ▁M > Tr am ▁in ▁ 2 0 0 4 , ▁Y ar ra ▁Tr ams ▁acquired ▁ 3 9 ▁D ▁class ▁Com b ino ▁tr ams ▁and ▁o vers aw ▁the ▁delivery ▁of ▁another ▁ 2 0 ▁still ▁on ▁order . ▁They ▁are ▁le ased ▁from ▁the ▁Commonwealth ▁Bank , ▁rather