I built a mail LLV (long-life vehicle) based on a cartoon image I found online a couple years ago. The postal logo on the truck was likewise built using divs and CSS.
If you view the pen on CodePen you can open the sliding door by clicking it. I thought of this feature after building the truck, and if I could do it over I would've made the sliding door's window transparent so you could see inside, though this would've certainly added a level of complexity.