I had. Based on this: You know mods like this are hard to make? So if there's no particular mod doesn't mean modders are too stupid and have no ideas.
I attempted to port the ETK diesel to the Sunburst, and now, whenever I try to spawn the Sunburst, the game completely breaks. Any suggestions? --- Post updated --- Nevermind, I fixed it! Turns out I was missing a single bracket from the end of the jbeam file. Who would have thought that a single bracket would break everything...
Check the console (press ~ key) for what is causing this. You probably put a typo in an important part of the jbeam.
Hmm... now my turbo isn't showing up and my ECU breaks everything. Oh well. Maybe engines aren't my strong suit.