What is Sim Racing? Sim Racing is an abbreviation of “Simulated Auto Racing”, the computer software which is extremely accurate re-creation of the real world of automotive racing. Racing simulation software is not “racing game”. Sim racing has become a “mandatory” for professional racers and automotive racing fans. Some of the names of the leading racing simulation software in the world today are: rFactor 2, iRacing, Stock Car Extreme, Assetto Corsa, Live For Speed. Racing simulation software is very appropriate to be used to train a racer’s skill, physical and mental. Today, we can say all F1 racing teams use this kind of software for training the drivers, they use rFactor Pro.