im having the same issue's

it started to occur after the latest windows updates.
could this have something to do with latest .NET framework update ?

thanks for the link, Dslyecxi explains it pretty much in his video.

im having the same issue while in the editor,
it runs fine for a few minutes and than performance drops.
not caused by AI cause they only spawn when I am in their direct environment.
a few days ago everything was fine but performance seem to have decreased since the update mentioned above.

running on AMD phenom 2 x4 965 @3.6ghz
8 GB memory, Radeon HD7970, game installed on SSD station.

yeah that would be sweat feature indeed.
also very handy for user made modules, u only have to create a module instead of the whole truck.

technically u can load, transport and build an entire base with all needed facility's if we had a truck like this as service vehicles.

Up voted, for ^^ reasons.