Ok this must be possible, we are NOT buying a new car
I have a nearly 4 year old who weighs 15 kg and I think she can now have a booster seat? do they make skinny ones? I then have a 2 year old who has a fat-ish maxi cosi car seat, then an 8 week old baby who has a Jane backward facing one.
Please help, I cannot continue sitting in the back squeezing my large bottom inbetween them! family outings are not funny!