DS is 2.3, 14kg and 90cm tall (roughly). In our car he has a rearfacing Britax 2-way elite, which should fit him for a while yet.
My mum would like a car seat for him. Main criteria are ease of fitting and removing, and likely to last him as long as possible (because he wont use it much, although she is expecting more grandchildren).
I don't think another rear-facing seat is the best idea, mainly because they have 3 different cars they may put the seat in, and chnging the tethers and fitting the seat is a bit of a hassle. And whilst I am convinced rf is safest, I am also concerned that the seat is well fitted.
So given that, is an isofix seat the best? I haven't really looked at isofixes before and I dont fully understand what I need. Do I need a base as well as a seat?
Any recommendations?