DS is 4 & almost 17kg & 104cm.
He is in a britax TWE FF.
DD sits next to him in a britax kidfix XP SICT both seats fit fine in my fiat 500 however I'm aware DS will need to move to a new seat relatively soon.
Any advice on what seat I can get to sit alongside DDs in my fiat?
I can't see that another like DDs will fit.
Thanks