Efforts that primarily focus on incremental change in systems that are unsustainable by design are one of the main barriers to scaling up climate action. This report applies the OECD well-being lens process to the transport sector. It builds on the report Accelerating Climate Action and encourages countries to focus climate action on delivering systems that - by design - improve well-being while requiring less energy and materials, and thus producing less emissions. The report identifies three dynamics at the source of car dependency and high emissions: induced demand, urban sprawl and the erosion of active and shared transport modes. The report also provides policy recommendations to reverse such dynamics and reduce emissions while improving well-being, from radical street redesign, to spatial planning aimed at increasing proximity, and policies to mainstream shared mobility. Analysis also shows why the effectiveness and public acceptability of carbon pricing and policies incentivising vehicle electrification can significantly increase after policy reprioritisation towards systems redesign.