Agree, WAP4 is still one of the best locomotives and hauls many SF trains and has hauled Rajdhanis having Avg speeds in excess of 80 KMPH.. No way its a bad loco, that too when it comes to pulling only 18-20 coaches.. AFAIK this is capable of hauling 26 coaches at 140 KMPH.. Which is way above the coach carrying capacity and MPS of Indian trains..