I have searched the forums and have not seen an updated thread on this so if I missed it, please let me know. I am on the hunt for a car seat that fits the California. So far, we have bought two and had to take them back due to them not fitting. The Diono Radian 3R and one by Graco. Does anyone have an updated list of seats that fit? I have a 4-year old that is dying to go for a ride in dad's new car with a unicorn on the front of it. She thinks the pony is a unicorn, hey, who am I to correct her?