awwww poor Layla!
My Dexter does that. I turn up the radio now!! LOL Its been over 5 years of this. He is safe and the carrier is so beat up now but at least I don't have to hear him screaming. He does it because he wants to sit on my lap but I don't allow it when I'm driving! It's maddening and makes me feel CRAZY when I go for a 20 min ride and he screams the whole time like someone is killing him!
If you find something that works let me know. I am at my wits end with him. Poor baby! I hate how stressed out he gets in the car, he'll pant really hard too, it's heartbreaking.