I've Been running F4 and LMP3 mostly this season. Been having a lot of fun but after the F1 race this morning I bought the Dallara F3.
Took it for a couple of spins around Laguna Seca and what a treat this car is to drive.
I unfortunately only own a few of the tracks this season for it. So my use will be limited. But hopefully there are some tracks that overlap some of the series I end up buying tracks for next season lol