Wikipedia is wrong. Production started at least in 2012.
Maciej Pietras from CDPR :
Quand nous avions lâché le teaser trailer, Cyberpunk 2077 était déjà en production. On travaillait notamment sur différents concepts, établir la direction que nous voulions prendre, tous les éléments qui nous ont permis de démarrer le développement. Mais comme je vous l’ai dit tout à l’heure, nous sommes dédiés entièrement au jeu depuis 2014.
When we released the teaser trailer, Cyberpunk 2077 was already in production. We were working on different concepts, establishing the direction we wanted to take, all the elements that allowed us to start the development. But as I told you earlier, we've been entirely dedicated to the game since 2014.
So, which one lie and moan like a little girl now ? Don't call me a liar please, ask for source if you don't believe me.
8 years with no game delivered for CIG = bad
8 years with no game delivered for CDPR = good
In french we say "deux poids deux mesures" (double standards).
And (as StuartGT teaches me), CPDR started with 50 dev and a full working society/tools where CIG started with 13 employees (not all dev) in 2012 with wrong tools.