in ued . ▁That ▁aut umn , ▁however , ▁the ▁Rio ▁Grande ▁decided ▁to ▁upgrade ▁its ▁remaining ▁narrow - g au ge ▁passenger ▁trains , ▁and ▁renov ated ▁ 3 8 ▁passenger ▁cars ▁for ▁use ▁on ▁its ▁Sal ida - Mont rose ▁and ▁Al am osa - D ur ango ▁routes . ▁The ▁ref urb ishment ▁included ▁the ▁addition ▁of ▁en closed ▁vest ib ules , ▁the ▁installation ▁of ▁electric ▁lights ▁and ▁steam ▁he ating , ▁and ▁new ▁interior ▁seats ▁and ▁fi xt ures . ▁The ▁finished ▁cars ▁were ▁perhaps ▁the ▁most ▁comfortable ▁and ▁well - app oint ed ▁narrow - g au ge ▁equipment ▁in ▁the ▁United ▁States . ▁ ▁The ▁equipment ▁renov ation ▁project ▁was ▁completed ▁by ▁the ▁spring ▁of ▁ 1 9 3 7 , ▁and ▁the ▁new ▁train ▁entered ▁service ▁between ▁Sal ida ▁and ▁Mont rose ▁on ▁April ▁ 9 . ▁Dub bed ▁the ▁Sh avano , ▁the ▁train ▁included ▁b agg age ▁and ▁mail ▁cars , ▁coach es , ▁and ▁a ▁par lor ▁car . ▁The ▁Sh avano ▁operated ▁west bound ▁from ▁Sal ida ▁to ▁G unn ison ▁in ▁the ▁morning , ▁returning ▁in ▁the ▁evening ; ▁the ▁schedule ▁allowed ▁through ▁passengers ▁to ▁connect ▁in ▁Sal ida ▁with ▁an ▁over night ▁standard - g au ge ▁train ▁to ▁Den ver . ▁ ▁Despite ▁the ▁improvements ▁made ▁to ▁the ▁train , ▁however , ▁patron age ▁was ▁not ▁sufficient ▁to ▁retain ▁the ▁service , ▁particularly ▁in ▁light ▁of ▁the ▁region ' s ▁impro ving ▁roads ▁and ▁increased ▁autom obile ▁traffic