Gustavo
I'm with Hamlet. We do have an excellent way of testing similar car performance using QR although we cannot take those data to our cars in a straightforward conversion, because in QR all cars are capped to an equivalent of level 10 team.
I hope one day we can choose all variables (driver skills, car attributes, team technologies) in order to create truly testing QRs.
Right now QR private lobby allows you to choose the track you want to race on. Why not more variables to tailor fit it. That would almost make me think of just doing QR's.... lol!!! OK, maybe not. But it would be something I would go to more often.