So I first booted the game three times... nothing was happening, on the second attempt the screen went black as if it was launching, then it just went back to desktop.

On fourth try it worked, only to be blocked at the "on the edge" race - CONTRACT FAILED - apparently already quite frequently encountered bug. (yes I played that track like 10 times and tried to fix it ingame)

So yeah I played all them four races till I had gold on em, then I was bored.
I tried to restart the game.
Now I sat there hitting the "play" button for 15min... trying different things. and every time after about 30 -40 sec it crashed back to desktop.

At 15min, lets give each launch the full 40sec (the maximum time it took till crash) for the launching.
That makes it 23 times, that I launched the game.

It only started once out of the 23 launches so that's a maximum of 2.3% that this game even works.

I understand that it is not in full release... but you are in CLOSED BETA with this, offering it to buy at FULL PRICE right now, while in that state...
And I am sitting here with a 2.3% chance of being able to play FOUR races...

Multiplayer can't even find a single Match in 5min, but that's ok to me, the single player and local multiplayer is what counts (to me).