@Morschee it's already out (it was sold out to pre-order though). I'm playing it (on PS4), and it's really very good. There's quite a few reviews of it out there if you check all the usual names for game reviews (IGN, Gamespot, ect).
The visuals are amazing, the realism in handling is brutal, satisfying, unforgiving, rewarding, and much more. Overall it's a brilliant racing sim.
It's very open ended, no tutorials, no XP or leveling up. The career mode can be done in any way you wish, starting at the bottom and working your way up, or just starting anywhere at any tier.
If your thing is the licensing, you might be a bit disappointed, since it lacks some staples in cars' terms (Ferrari, VW, etc), and it has one or two tracks that aren't licensed and therefore not the ones we know and love (Suzuka is named Sakitto, with the basic layout somewhat familiar, but changed enough to satisfy the Rights people).
I would highly recommend this game.