Car seat for 2 door

Hey yall! So I have a 16 month old son who weighs 28 lbs and is 35 in long. We’ve made the infant car seat last as long as possible but he has outgrown it. We have the Graco 4ever car seat for my husbands truck, but he uses his truck everyday for work. I drive a 2 door Honda Civic. So we all know how limited space is. I’ve been making it work because we cannot get another vehicle right now. We live in Florida where it’s a million degrees out so I definitely get my workout loading him in and out. 💪🏻

So my question is, do y’all have any recommendations on a car seat that is a good space saver as well?