I'm car-free in the UK and expecting my first in November. We would like to get a safe car seat to use in taxis or rental cars. The situation in the UK is most people seem to use infant seats and then switch to FFing after 13kg. So after baby outgrows her first car seat we will need to switch to a Swedish ERF seat, and I would obviously like to delay that as long as possible as it seems like they are not easy to fit in strange cars! So I am trying to find an infant seat that will actually last till 13kg (and not get outgrown by height too soon before then) and that is easy to fit in various cars. Luckily we are smaller people so if baby takes after us then she will not be 13kg for quite a while.
Does anyone know anything about this issue, or know where I could find information about which seats last longest and work in most cars? I would really appreciate any guidance, as I haven't had much luck looking at most UK resources because it is completely normal here to FF babies who aren't even a year old, and most of the advice reflects that.