Champaran HumSafar Express : इन अजनबी सी राहों में, जो तू मेरा हमसफ़र हो जाये, बीत जाए पल भर में ये वक़्त, और हसीन सफ़र हो जाये. - Piyush Singh

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..

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