It's not realistic at all. As a matter of fact, it seams completely fake in game. U can't implement just the correct performance numbers and expect it would be enough. They didn't manage to catch the essential Atom's madness. Here it seems boring and totally out of touch.
From what I saw so far, TDU2 hardly can compete with its predecessor in simulation of the thrill of driving supercars. Lots of things are missing. Like having a start button. The first contact with a car is missing. Stupid decision. Did they throw this out because of additional command they needed for turning signals, which are, btw very lame implemented?
Hopefully they will provide a proper after market support with many dlcs, patches and improvements, because in this state, I can see this game only as the fair base which have to be much improved in order to become a proper modern driving game.