Board Thread:Questions and Answers/@comment-80.229.36.53-20140131195702

Normally when the quest requires trains, e.g. send 20 Electric Trains,  to be sent to a contractor I look ahead [thanks to this wiki for the help] and send materials required later BUT...

What happens if you send XP Special Wagons, e.g. coffee wagons. Does it do anything other than fulfil the basic requirement..? 