On September 3, 2017, the new Flexity Outlook streetcars were introduced to the 512 St. Clair streetcar route. Because the new streetcars are twice the length of the older CLRV streetcars, the underground platform assignments for streetcars at St. Clair West station had to be changed. Previously, streetcars for both directions shared the west-side platform for arrivals and the north-side platform for departures, each able to accommodate two CLRV streetcars. Now the west-side platform handles arrivals and departures for one eastbound streetcar, and the north-side platform for one westbound streetcar.