I'm trying to import a model into blender, I went to file/import/.dae and then beamng/content/vehicles, and then I only see a sound folder, no other files. What am I missing here?
beamng vehicles are now in .zip files. Goto beamng/content/vehicles in file explorer. Open a vehicle .zip and extract the .DAE out of it. Also, the pickup body stuff is in the pickup zip. The pickup frame and things is in common zip, under the pickup folder. also if you havent found it already, this is helpful https://www.beamng.com/threads/how-to-correctly-import-export-official-vehicles-via-blender.14793/
