When I look at this inventory, I'm amazed by 5867's remarkable resemblance to 4100. These sets are both wheeled vehicles with plenty of functional pieces and several different colors. I think the biggest differences are that 4100 has more bricks and that 5867 has newer slopes. Other smaller differences are the wider windshield of 5867 and the presence of more wheels in 4100. Nevertheless, I think that 5867 seems to be the newer version of 4100. You did a good job with this inventory, considering the size of this set.