Highway Hauler Tests [Broken]

STILL BROKEN! Decided to finally attempt fixes. Will hopefully get to re-designing and re-scripting the trucks in the near future. 10/08/2019 -> Added fuel filter, fuel pump and pulley to the engine. Changed the lower cabin part of the new truck. 26/07/2019 -> Moved intercooler and changed piping a bit. Added common rail. 22/07/2019 -> Added pipes where needed on the engine. Made my own turbocharger and put it on the engine. 20/07/2019 -> Created a prototype model of a 12.8 liter, inline 6, 460 horsepower turbo diesel engine (have yet to finish it).