Ahhhh yes!! The car was the worst for a while too... the curdling screaming omg! That lasted 2/3 months at it's worst. I agree with studymum it's because they want to communicate but can't get it across what they want. Elijah has found his ways of working around this and communicates quite effectively with no words at all. I find that I need to be rather attentive when he's trying to get across what he wants and pick up on his signs. He lets you know quickly if you're on the right path or not lol. It does get better