Baby hates the car!!!

Hey ladies,

So I need some help desperately. My 4 month old has always hated the car, but it’s progressively gotten worse to the point where I can’t even go 10 minutes to Walmart without him screaming his head off. He screams so hard that he chokes and turns red and I’m scared he’s going to pass out! I used to roll the window down which worked for awhile but it’s not working anymore. I’ve tried everything; a tv, mirror, toy, pacifier, nursing him right before leaving, checked all the straps to make sure it wasn’t hurting him. It got so bad one time I even took him out of the seat until we could pull over and that didn’t help either. Nothing is working and I’m losing my mind because I can’t leave the house! Anyone else been through this and have any suggestions????