This study examined the associations between parents and their adult children driving style. The multidimensional driving style inventory, a self-report scale, was completed by 475 members of 174 families (father and/or mother, and one offspring), to assess four broad domains of driving style. Significant associations were found between parents and offspring’s driving styles. In addition, specific associations were found between father–son and mother–daughter driving styles. The discussion focused on the importance of examining intra-familial transmission of driving styles as a basis for planning and designing effective safety interventions.