This page will show all the different types of upgrades that the mini z cars can have, as I'm new to the Kyosho Mini Z world, the upgrades will come slowly as I learn about them myself.There are some very simple ones and some that are more involved, such as gearing suspension and plastic parts changed for metal or carbon bits,You can use the Kyosho website to get some idea what you can do, there are also a few Mini z website's that are set up by mini z racers them self some are good for information and help with mini z Cars, ans some are good for trading mini z cars, bodies and parts