@Blackbird90 Probably the Devs felt the need to make the cars faster. I think the pace in the beta was more realistic, but not having tried it, I can't say if the feeling was better.
Having looked at the files, there is about 60bhp extra (not bad, was too low in the beta) better aero efficiency and feels like more grip, but we can't check that as we don't know the tracks surface grip.