After a short Twitter-talk:

Since the introduction of the Slingload Feature, it's almost useless for Vehicle-usage.
Mostly because of the Bunjee-like behavior and the "uber-Handbrake".

Is there any chance, that another Rope can be implemented, wich has more "power/force" to get back to its init-state?

Reason:

http://i.imgur.com/fIqTuAo.png,

I finaly want to finish this thing. The only Problem is the up and down of the attach object, due to the ropes :/