Okay, I was looking in my image folders and found these pictures of my old van with sliding door.
I didn't have any need for a background back then so it doesn't look very good, but it works.
I also found this.
I had built a great truck with rear-wheel drive and front-wheel steering. my rechargeable battery box was being used for something else so I built that coloured block to replace it.
Here we are again! this time, it's a non motorized model, but it features what I think is the smallest independant suspension system possible with lego. Here are some pictures.
It is slightly bigger than minifig scale and features a dragging edge suspension in the rear, but it looks great and works well. The independant suspension has little travel, but it works well.