I just got this product, and after playing for a while I decided to try the career mode. There is a huge problem however, I'm not able to make any adjustments to my vehicle ("tuning"). For the very least I'd like to adjust my brake balance +20 in the Dallara F312. In a real racing car the adjustment is inside the cockpit, so I don't understand why it is blocked. How long do I have to play like this, or is there any way enable them? One solution would be to put all assists on and just hammer on to win event after event to finally get there, but I'd rather enjoy the lower level events as well.