The average level of ownership of cars in India, currently 13 per 1,000 population, is expected to grow exponentially. Estimating the average level of ownership in 2025 at 35 per 1,000, this article points out that the growing number of cars has serious implications for energy security, air pollution, road safety, and equitable allocation of road space, and argues that there is an urgent need for India to learn from the experiences of cities that have decoupled car ownership from economic growth, and reduce the rate of growth of car ownership in India.