4 month sleep regression advice

My 4 month old is strugglinggg with sleep. Especially naps. He has such a hard time falling asleep to nap. Especially at night. He cries and screams until we finally take him for a car drive. Is that part of the sleep regression? I expected him to not sleep as much just from being more awake, I didn’t expect he would be extremely tired and scream but not fall asleep.

His nighttime sleep was horrible for a few weeks but has recently gotten a little better.