Maybe I'm slow and everyone has already seen this but just in case you haven't ....you gotta see
. This is the first video with audio edit included with his trucks that I've seen and its really good..... Check it out
http://youtu.be/vHQViUBgF5k
Now ya gotta see the build video of the truck....the entire body is made of wood, scratch built.
If you haven't seen this guys work, you will be amazed!
http://youtu.be/a_Dvap18PLc