DS1 is 3 and is outgrowing his car seat (Maxi cosi priori). Just looked in Mothercare catalogue and it seems for the next stage we have two options. One that is a high back booster which uses the adult seat belt to secure car seat and child, the other is more expensive but uses the adult belt to attach car seat and then there is a 5 point harness inside seat for child. Both are for same weight (15kg upwards)
Any tips?