The main objective of this paper is to quantify de impacts of socio economics variables in car ownership in Mexican municipalities in 2010. I separated urban and rural municipalities in order to appreciate different impacts. The results show that income per capita has the highest impact, in fact, is the grater than the others founded in literature around the world. Other important variables are population density and roadway provision. The roadway provision offers evidence of induced traffic. The results are commented in terms of public policy uses.
