Tractor and Trailer with Sounds v2.1

DLC France required.

[2016-12-26]
Update.
Increased tractor sound.
Removed “displacement_limit: 0.0” so tractor trailers behavior is more realistic.
Thanks “Todor Alin” for “displacement_limit: 0.0” comment.
Thanks to AlexeyP for rework tractor trailer model for this mod.

This mod add tractor with up to 3 trailers in traffic.
Now we have tractor with one trailer only.
Tractor can appear on local roads only.
Tractor have own sound.
Speed increased up to 40 km/h