I’m due baby 2 imminently..we already have a cybex sirona I-size seat set to rear facing for our 22 month old. I’d like to keep both children rear facing till around 4 years due to the safety benefits...however we’ve just realised that if we have two cybex’s there is no room to fully extend the front seat back where my 6’5 husband is sitting. Can anyone recommend a good car seat designed for extended rear facing that can fit behind a very tall driver?