u/Funway1111

So while coming from Markham today, my bus was passing by CP's Toronto Yards at Markham Road when I saw something peculiar. A lone GO Train Bi-level car attached to a long set of CP cargo rail cars in between. Unfortunately I wasn't able to take a picture but you cannot mistake that bright green and white in a sea of dull cargo railcars.

Anyone knows whats up with that and why is it there?