PC games are updated all the time but the 2.0 branding marks a new build for the game, improving the realism of tire modelling and offering a wealth of new vehicles and race circuits, including the Ford GT and HPD ARX01 Le Mans prototype, and the Iowa Speedway oval and Japan's Suzuka Circuit road course.
Other new features include tournament racing that enables multiple hosted sessions to be linked together, and web chat with mutually selected friends.
If you like your real-life series you'll also be able to race in NASCAR Cup and Nationwide cars and Skip Barber Formula 2000 single-seaters.
You can check out a video of iRacing 2.0 at the MotorAuthority link below. You'd best start dusting off that racing sim rig because the competition is sure to be intense...