My mom just got a new car and cannot remove the headrests in the back row. We have a Maxi Cosi Rodifix and a Chicco Kidfit (currently in high back mode) for my 7 and 10 year old girls. The problem is mainly with the Rodifix - the headrest does not allow it to sit flush against the seat. The gap is about 2.5 inches at its widest point. The Chicco seems a little less pronounced (maybe because it's higher?). Is this acceptable? Or do we need to find a way to remove the headrests? Or get a new car? I know we could remove the back, but my girls are tiny and I really prefer not to do that. Our other alternative would be to give my mom 2 Kidfits (we have 3 of each for our various cars). But I'm not sure that fit is acceptable either. Thanks!