This is a rigged version of [Furiosa's War Rig](https://www.blendswap.com/blend/15316) by [ChrisKhun](https://www.blendswap.com/profile/1915), all credit to him for this awesome model.
Both the truck and the trailer have been rigged using Rigacar.
A script allows you to animate the trailler to follow the truck automatically :
1) Animate the truck any way you want
2) Run the script
3) Wait until the animation is finished
4) The trailer is now following the truck

This is my first blend, feel free to comment and suggest any improvement.