American Truck Simulator trucks and cars 0 Wester Star 5700 Optimus Prime 1 Wester Star 5700 Optimus Prime 0 Wester Star 5700 [Optimus Prime] v1.4
![Wester Star 5700 [Optimus Prime] v1.4 for American Truck Simulator](https://cs2.worldofmods.com/screenshots/f80ce/2016-11/wide/c9a9fe3d5f15abf878504ae18775d1bf05de4f10/213988-amtrucks-2016-11-15-14-06-30-238.jpg "Wester Star 5700 [Optimus Prime] v1.4 for American Truck Simulator")