I have a v8 gtc4 lussoT with only 2000km. I just started driving my car this morning. The speed was about 30 to 40 km/h. After go through a small pit, the gearbox suddenly jumped to gear 2. The rev speed soared to 7000 rpm. I released the throttle immediately. After driving the car to the dealer, there is no faulty error in system, but the gearbox always stuck at an error when they try to do a "circle teach-in check"(I don't know what is it). It shows the "clutch pressure control volume failed" every time. At last, the dealer can only let me leave the car there, so they can ask for the help from Italy side. They say that this may be a software error or a problem with the rev sensor. I know that v12 gtc4 has a lot of gearbox problems, especially the front gearbox, but it seems to be different from this one. Has anyone encountered this problem before?