DD is 4.5, 103cm and only 13.8kg. Currently rear facing in a maxi cosi 2 way pearl but rapidly approaching the 105cm height limit. However she is too light to move to a HBB. Our car (05 VW Polo) is apparently not suitable for axkid and not keen to ff in a harness if at all possible. Baby number 2 due soon so happy to consider any option which can be passed along in the future!