A new Société de transport de Montréal (STM) metro garage near the Côte-Vertu metro is expected to add more cars to the orange line.

Montreal's original subway cars were taken off the tracks two years ago, but local entrepreneurs have unveiled a plan that would see the blue and white cars serving the city for another century.

Commuters will now see two test trains rolling along with the regular metro cars, but hiccups are expected.