Well, I looked at the ofna, sportwerks (1/10) the Trinity with the boxes, and the Trinity car carrier. I went with the Trinity car carrier. I also got some plastic Plano boxes from a sporting goods store. I found one that is about 2" deep and ~8"x11", all open. It works great for storing all of my extra parts, another for tires, and 2 that are ~1" deep that have dividers for all my tools, and small parts. They fit in to the top of the bag perfect, and when you got to get the car out, all your stuff does not come falling out of the top of the bag. There is enough room in the bottom of the bag for a 200mm car, and the ofna starter box, side by side. So far it works GREAT! Finally I don't have to make 6 trips from the car to the pit area. One bag, and a 1/2 gal of fuel and I am off to the races. (I only take a 1/4-1/2 gal a time so that I don't leave it all out in the sun and ruin it.)