Wagons Follow Track

Hi all,

I want to make a small train track animation where the wagons have to move on a curved track. However the wagons are not following each other in the way it should be;

How can I adjust this in the most decent way?

Please have a look at the .blend;

pr.blend (2.1 MB)

Thx in advance!

Hey, see this thread, if it does not help, post back