INDIANAPOLIS — For the most part, IndyCar has been a spec series for some time. But the sport's new iteration on the iRacing circuit, starting with Saturday's competition that kicks off a series of ...

As the INDYCAR iRacing Challenge kicks into high gear on NBCSN, we've come up with a quick guide to what iRacing is, how realistic the racing is, how popular it is with the drivers and much more.

I've never been to northern California's legendary Laguna Seca road course. In meatspace, at any rate. But thanks to dozens of realistic racing game recreations, I know the track's serpentine layout ...