It was more or less built out of the box. I drilled out the lights and added some detail to the roof above the driver.
There are four stretchers included but the kit is made with a closed rear so they wouldn't be visible. I skipped the rear wall and added some plastic strips inside the side walls and roof instead.
I will give a little tip for anyone that is going to build it. Don't start with the chassis. Start with the body and build the chassis on it. It is easy to get the chassis some what wrong. My looked good but it turned out to be little warped and the body would't fit. The radiator didn't fit either so I had to cut little in the chassis.
I added some figures from Bachman and an old wall from Matchbox to a base.