The mini-zs are kinda like the xmods in the sense that every car is the same thing outta the box, So find a body style you think might be lighter than the others (like the RSX xmod) or the body you think looks the coolest. Mini-zs are just as easy to upgrade as xmods are, only there are MANY MANY more parts. I have an Overland and the quality compared to an xmod isnt even explainable. I cant even find the right words to compare the two! I would HIGHLY recommend you buy one, they are a blast