Search did not bring up a thread so my apologies in advance if there was one.
I guess free Steam weekends actually do work. For the first time ever I actually purchased a product that had a free weekend and put in 19 hours on the game in two days. I looked up at 2 AM Sunday morning to realize I had to finally go to bed. It has been a while since a game did that. I am not a racing or auto fan yet was still engrossed.
It is not dissimilar to something like Championship (sorry, Football) Manager. You build a team, maintain finances, set up your cars, hire staff and drivers, build and research new parts, interact with the press (very rudimentary) and race in one of three series. The interface is slick and it is quite easy to get around. It is challenging but unlike FM you see results of the things you have done. If you spend the money to build and refine a new engine you will see results on the racetrack.
The races themselves are tension-filled beasties. I find myself cursing at my drivers for letting someone slide by them too easily or taking the wrong angle on a turn. During races I am consistently evaluating pit strategies, laps to go, tire condition, fuel in the tank, position and weather. My quite poor team scored a triumph with 3rd and 5th place finishes in a race last season when I decided to put on rain tyres from the outset while most other teams adopted intermediates. When the rain came sooner and harder than expected we were able to blow by everyone on our way to a tremendous finish for our little group.