My dd2 aged 2 3/4 is in my dd1 old car seat Britax 9 months to 4 years
The foam has started coming away from the edges so I need to order a new one ASAP
Looking online & think I need a group 1/2/3 to be suitable from 9 months to the rest of time she needs one is thus correct?
Group 2/3 seems to be from age 4 up?