It’s all against other human players. You start off with a choice of the 2010 F1 cars, or british touring cars.
You then chose which team you’d like to join, either team up with someone, or become a team leader, and someone will join you.
You have quite a good degree of customisation of your car with set up, as this is quite precise. It’s good, you only get a few practice laps to perfect your set up, and then you qualify.
I think it takes 38 days to complete the 2010 season, and the best thing is, you don’t need to actively be at your screen to complete sessions, apart from practices and warm ups.
Get on it aj!