Well, if you look at the EXIF, this image is over a year old - and, yet, it's presented only today.
If you look at the sky, you may deduce the reason I kept this photo hidden for so long. A partly cloudy day, with the sunlight being occasionally covered by a cloud. I and a friend were waiting for this train, a special Pecovasa car transport train from Entroncamento to Alverca (but, in the mean time, we also captured other trains) done with a CP 1550 and, when it appears, yours truly, with the camera set for a sunny shot, has to take pictures as yet another cloud covers the Sun. Oh woe. So, I stuff it into my archives, leaving for another day the task of trying and transform it into a fairly decent shot.
Well, today was that day. And this was the result. Besides, after all... a thing like this isn't seen in quite some time around here.

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CP Diesel Locomotive 1550 series
UIC numbering: 90 94 1 211551 - 90 94 1 211570
Builders: Montreal Locomotive Works [model: ALCo MX-620]
Began service: 1973
Units built: 20 (19 currently active)
Length: 17,905 m
Width: 2,997 m
Height: 4,356 m
Weight: 89,7 t
Axle formula: Co'Co'
Top speed: 120 km/h
Power (wheels): 1250 kW (1700 hp)