Hi - I currently have a 4 year old who is in a Maxi Cosi Rodi XR high back booster and a 2 year old who is in a Maxi Cosi Tobi. however, my 2 year old is over 15kg so I am happy to put him in a hbb as well. I am having no. 3 in about 3 weeks (v late with this research I know!) and have a Maxi Cosi Cabrio for the baby. I have tried to fit all 3 in the back of the car (Audi A6 Avant) without success. I then thought the MC Rodi SPS was much narrower and found a Halfords with 2 in stock to try them out but still no success. Any help with combinations and how to do it would be gratefully received! I have a feeling I will have the baby in the front with me but we often go as a family away at w'ends (2 hr drives) and I don't fancy squeezing in the back seat!!