I'm also with Nel, just get the Cap car.
It will be super fast right out of the box and you can put all your time and effort in finding a nice setup and driving instead of making a car work like it suppose to do.
Im looking into getting one as well for next season. We'll have to wait and see. Right now, my primary focus is to get all that I need, practice, practice, and more practice. Lines are still there on the track, but I need to polish my skills up more before heading out to NorCal or SpeedWorld races.