This page offers a new version 1.39 of the XMR Editor, which allows the creation of custom cars and tracks for X-Motor Racing. There are no specifics on the new version, but here is an overview: "XMR Editor is a free tool that contains an example of the car and two examples of the tracks - one test track and one off-road track. XMR Editor allows you to create cars, tracks and add them into XMR. Also it can be used as a modding tool to import any tracks and cars from many other racing games for your own private use."