My dd is rapidly outgrowing her Class 0 car seat and we need to move to the next size up. The problem is she still has minimal head control, so a standard car seat isn't going to be any good. Our physio has recommended the Recaro seat (adapted for SN) - however it's £600+ . Before I panic and re-mortgage the house does anyone have any other recommendations please? Is the Britax SN car seat good?