Released in 2003 by Image Space Incorporated (ISI) and Electronic Arts, is widely regarded as one of the most moddable racing simulators ever created. Despite its age, the game's flexible engine has allowed the community to keep it alive for over two decades.
The official tool used to open and pack .mas files. This lets you extract car textures to paint your own custom liveries or tweak vehicle setups. F1 Challenge 99-02 Mods
Mods, short for modifications, are changes made to a game's original content to alter or add new features, graphics, or gameplay mechanics. In the context of F1 Challenge 99-02, mods can range from simple tweaks to complete overhauls of the game's assets, such as cars, tracks, and graphics. These modifications are created by fans and enthusiasts using various tools and software, and are often shared with the community through online forums and websites. Released in 2003 by Image Space Incorporated (ISI)