Think of any car or track that exist in the world, and chances are someone has brought it into the game for free, which means there is almost no limit to what is possible.
One of the main reasons Assetto Corsa has stood the test of time though is its support for a wide range of customisation and modding. Assetto Corsa was always designed to provide a realistic racing experience and with the 'Ultimate Edition' including well over 170 fully modeled cars and around 45 track layouts (many of which are laser scanned), there is no lack of high-quality original content.
