Seems to be an issue with engine thermal not working with specific custom car configurations. Full Error Log is here: https://pastebin.com/JCK0RrmF This is the shortened version: 4039.57820|E|libbeamng.engine.buildExhaustTree| No exhaust end nodes found 4039.57823|E|libbeamng.engine.initThermals| Building the exhaust tree failed, please look above for the actual reason 4039.57824|E|libbeamng.engine.initThermals| Engine thermals are disabled due to above error Seems to happen specifically when using "V8 High Pressure Turbo" on the 5.0L V8 Engine.
Thanks for reporting some of the issues, finished my studies for now so getting back to it as soon as im done with getting my car back on the road.
Good news. I hope you can get back to dedicating yourself to this excellent MOD. If possible, don't forget to create the "1300" logos to use in place of the "800". Thank you and good studies.