High Quality Content by WIKIPEDIA articles! XMODS are 1:28 scale electric radio-controlled cars. The cars` primary marketing focus is on customization, and they are available in a variety of body styles and types traditionally favored by tuners. Fall 2005 saw the introduction of a new model line dubbed "Evolution" which also features a line of trucks. The cars are distributed by RadioShack in the United States, by Hobby Products International (HPI Racing) in Japan and by Carson Modellsport (Subdivision of Tamiya Germany) in Europe.