The design of inclusive paediatric mobility (IPM) interventions, such as children's wheelchairs, are entangled with technological, health and social considerations. As narratives around childhood, disability and mobility shift and transform, these entanglements evolve. In order to optimise the experience of childhood mobility, IPM designers must understand and respond to such changes and channel children's own requirements, desires and 'dreams' into the design process; this can be achieved by utilising a child-centred design approach. This paper identifies meaningful child-centred IPM design insights and opportunities through the interdisciplinary analysis of 130 dream wheelchair designs by disabled children, aged 4 to 17 years. A novel interdisciplinary and child-centred design analysis framework is developed to dissect, categorise and code the topics and features expressed through visuals and written descriptions in each of the children's dream wheelchair designs. Children's mobility narratives, desires and requirements are elicited and trending topics are discussed. It is proposed that valuing children's voices in the IPM design process could alter both the process of designing IPM interventions as well as the product outcomes.