While the poll above focuses on Race Department readers, the reality is very much different on a global scale outside of Race Department, Assetto Corsa and Project CARS user base is a thousand times bigger, not including console users.
AMS and rFactor 2 barely gets a mention anywhere outside of the so called popular "Sim racing blog and news" sites, I feel sorry for rFactor as a brand, I just don't think rFactor 2 will ever be as popular as it's older sister no matter how much they throw at it, and try bringing it up to the modern standard of many racing titles sim and none sim, where did it all go wrong, such a shame, I had one of my best gaming times playing rFactor1 and meeting new friends, Assetto Corsa is the racing sim that has more "Play time on record" as steam calls it, than any other games in my steam library.