Plz if you haven't seen WCAM-3 in real life than do not comment. It doesn't make sense to comment like this if you don't know the reality. WCAM-2/3 is best loco for Mumbai Regions. Regardless if WAP-4 or even WAP-8 visits Mumbai then too WCAM-3 will be the king of Mumbai. Come to Mumbai sit in any WCAM-3 hauled train. Study it's acceleration,speed,de-acceleration and than comment. Till then stay away from discussion